Steel Plug
WHY PEOPLE USE IT
The weight is the primary draw. The density of steel means even a small plug produces a noticeable feeling of fullness, and larger plugs can feel quite intense purely from mass.
Temperature play is the other major appeal. Steel heats and cools readily and holds the temperature for a sustained period. Warmed in hot water or cooled in a fridge (never ice directly), it produces a very different internal sensation from a room-temperature toy.
The hard, smooth surface also appeals to people who find textured or flexible toys overstimulating, as steel delivers consistent, even pressure.
HISTORY
See: Butt Plug
Metal plugs appeared as the butt plug category matured in the late 20th century, but it was the founding of njoy in 2006 that brought precision-machined surgical steel into mainstream adult retail. The Pure Plug established steel as a serious material choice rather than a novelty, and the design has remained largely unchanged since its introduction.
WHAT TO LOOK FOR
Only buy surgical-grade stainless steel, specifically 316L. Lower grades can contain nickel or other metals that cause reactions in sensitive people. Reputable brands will always label the grade clearly.
A large, well-shaped flared base is important. The weight of a steel plug means it needs a secure anchor against the body.
Check the finish: the surface should be mirror-polished with no rough spots, seams, or pitting, which could harbour bacteria or cause discomfort.
TRUSTED BRANDS
njoy is the most widely recommended brand for steel plugs, particularly the Pure Plug range. Their products are made from 316L surgical stainless steel, mirror-polished, and designed with a balanced weight distribution. The Pure Plug 2.0 is considered a benchmark for the category.
Uberrime also produces quality steel options.
WHERE TO BUY IT
Order from specialist sex toy retailers rather than general marketplaces. Look for retailers that verify the steel grade and manufacture standards.
- Standard: $30–$60. Solid stainless, basic shapes.
- Premium (njoy and similar): $80–$130. Polished 316 stainless, precision-weighted, ergonomic designs.
Rough prices as of June 2026.
HOW TO LOOK AFTER IT
Cleaning
Clean with warm water and unscented soap after every use. Non-motorised steel plugs can be fully sterilised by boiling or running through the dishwasher (top rack, no detergent). Dry thoroughly after washing.
Lubricant
Steel is compatible with all lubricant types, including silicone-based.
Storage
Store in a soft pouch or the case it came in. Water sitting in a damp case can cause surface spotting over time.
- njoy product documentation and material specifications, njoy.com
- Sloane, R. (2018). The Ultimate Guide to Anal Sex for Women. Cleis Press.
- Various retailer material grade disclosures for 316L surgical stainless steel plugs.