Jewelled Butt Plug Small size. Stainless steel anal threaded butt plug with a jewel on the bottom width 25 mm, height 57 mm.- width 25 mm, height 57 mm. Size: Small the egg is 25 mm in diameter, Length 57 mm Available in Blister pack for better protection. Can also be used for temperature play, cold by putting in a fridge or hot by dipping in hot water to a desirable temperature.