Heft Plug vs. Njoy Pure Plug – Comparing Weighty Anal Toys
Weighty anal plugs make an impression not from vibration, nor thrusting – but via a steady sense of presence. Two standout styles dominate this category now: dual-layer padded silicone plugs like the Heft plug lineup, versus 100% stainless steel plugs like the classic Njoy Pure Plug.
Both approaches deliver satisfying weight inside, but how they make contact feels very different. This comparison looks at how Heft plugs and the Njoy Pure Plug differ in materials, comfort, weight distribution, and best use, so you can decide which style fits your preferences:
Design Philosophy: Soft Weight vs. Solid Steel
Both Heft and the Pure Plugs deliver noticeable weight without extreme girth. The difference is how that weight is carried.
- Heft plugs use a solid heavy-metal core wrapped in thick, soft silicone. The weight is concentrated inside, while the exterior remains cushioned and flexible. This allows Heft plugs to feel very noticeable even when you start in the small size.
- The Njoy Pure Plug is made entirely from 316 medical-grade stainless steel. The plug’s weight comes from the density of the metal itself. The Pure Plug’s distinctive curved shape comes through in this smooth, rigid toy that creates gentle pressure leaning toward either the prostate or vagina.
Both designs are intentional: one prioritizes softness and gentler insertion (Heft), while the other (Pure Plug) emphasizes direct, unfiltered pressure.
How the Weight Feels in Use
Although Heft plugs and Pure Plugs can be surprisingly close in overall weight at comparable sizes, the sensation is not the same.
With Heft plugs, the silicone exterior softens how the weight presses internally. The feeling is often described as grounding and steady, instead of ultra-hard. The weight is noticeable during movement – standing, walking, shifting position. The padded silicone exterior increases comfort, especially when inserting a Heft plug and first walking around with it inside.
The Pure Plug delivers a more direct sensation. Stainless steel does not compress at all, so the curved bulb feels immediately pressing. The way its weight curves inside is why many people find the Pure Plug intensely arousing, particularly as they walk and if they wear Pure Plug medium or Pure Plug large discreetly outside the home. Over time, the weight can fade into the background when sitting still—but then, it reasserts itself as soon as you get up and move around again.
Comfort and Wearability
Comfort at insertion, and when sitting down, is where these two designs diverge most obviously.
Heft plugs are often chosen for their gentler insertion and cushioned feel. The rounded tip and soft silicone surface can reduce resistance during entry, while the weighted core keeps the plug stable once inserted. The T-bar anchor base is where you feel the soft silicone most obviously as it rests comfortably between the cheeks. Sitting on top of the Heft plugs feels more natural for our staff testers.
The Njoy Pure Plug excels in long-term wear for users who enjoy firm pressure. The slim neck allows the wearer's body to hold the Pure Plug securely in place; meanwhile, the loop base remains accessible and secure outside the body. The steel surface is extremely slick, which helps with insertion and minimizes friction when well lubricated. (It’s also compatible with silicone lubricant.)
Pure Plugs are most popular for users who want to venture outside the house while discreetly wearing a butt plug, long-term: Pure Plugs can be worn for quite a few hours straight. (But remember to stop and take a break if you ever feel real discomfort – and before any length of wear, be sure to have a solid, thick anal lubricant at hand.)
Material Differences and Sensory Appeal
Material choice affects more than comfort – it also shapes the overall experience.
Silicone (Heft Plug)
- Soft, flexible, and forgiving layer outside
- Absorbs some pressure, reducing sharp sensations
- Quiet and discreet under clothing
- Easy to sit on
Stainless Steel (Pure Plug)
- Completely rigid and nonporous
- Highly responsive to temperature play
- Mirror-smooth surface with zero drag
- Zero butt odor
- Can be fully sterilized by any method
Soft silicone tends to feel more fleshy and natural, while steel feels cool and sleek at first, then warms to body temperature quickly. Both metal-including plugs are unmistakably “there” once fully inserted.
Size Ranges and Progression
One major difference between these two lines is how sizing is approached.
The Heft plug set (3-pack) is designed around progression. With small, medium, and large options, users can move up gradually in both girth and weight. The smallest size is approachable for beginners, while the largest delivers serious heaviness without requiring major anal stretching experience. The supple softness of Heft plug silicone is a great choice for people who want to explore weight without sitting directly on hard metal. (The set is also sold singly: in case you want only the small, medium, or large size.)
The Njoy Pure Plug is also available in multiple sizes, and each plug is sold individually. The Pure Plug’s bulb-heavy shape means that even the medium size can feel intense for beginners, especially due to the rigidity of steel. Most users often find that a single size (the medium or the large) suits them best instead of treating the Pure Plugs as an anal training system – since these are not tapered designs geared toward ease for 1st time butt plug wear.
Browse Pure Plug in small, medium, or large
Pros & Cons
Heft Plug:
Pros
- Soft silicone exterior minimizes discomfort
- Weight without extreme girth
- Beginner-friendly sizing options
- Comfortable base design
- More affordable as a 3-pack set
Cons
- Less direct pressure than steel
- No temperature play
- Weight feels subtler when stationary
Njoy Pure Plug:
Pros
- Iconic heavy steel sensation
- Extremely durable and hygienic
- Excellent for temperature play
- Highly secure during movement
Cons
- Rigid feel may be intense for beginners (not easily tapered)
- Requires more careful handling to avoid small surface marks
- Less forgiving during insertion (pointier tip)
Which Style Makes Sense for You?
Choose a Heft plug: (3-pack), or single size Heft, if you’re drawn to the idea of weight but want comfort first—especially if you plan to move, sit, or wear a plug for anywhere from 1–3 hours at a time without feeling punished by a rigid base or firm forward pressure.
Choose the Njoy Pure Plug if you love the unmistakable presence of steel, enjoy long-term wear, or want a classic weighted plug that delivers focused pressure with zero softness.
Both anal toy sets succeed at what they’re designed to do: Giving you a steadily filled up feeling. They just take very different paths to get there.
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