Rimba Bondage Play - Smooth Urethral Stick This urethral stick is polished smooth and easy to insert for an even more intense orgasm. The total length of the stick is 100 mm and the width is 60 mm. The insertable length is 90 mm and the insertable diameter is 8 mm. Please note: Always sterilize and clean the stick before use. We advise to use lubricant for a smooth insertion.