SPECIAL DESIGNED: Suit for Hismith premium sex machine only.QUALITY MATERIAL: Flexible spring with super bounce back and durable.CREATIVE SOLUTION: Making diverse penetrating postion easier.SMALL IN SIZE: EASY to use, clean and store, well packed by seal membrane.DISCREET PACKAGE: Neutral packing, avoiding unnecessary embarrassment.Hismith focus on sex machine series, we produce the machine and matched accessories. This item made from high quality stainless steel material, super bounce back power. definitely a new idea to enjoy automatic sex. with this spring adapter, you can enjoy different penetrating pleasure without adjusting the machine. you don't need to maintain a posture for a long time, you can find a comfortable position when use the machine. if you want to feel free, why not try it! Parameters: Total Length: 15.5cm (6.10 inches) | Spring Length: 6cm (2.36 inches) | Material: Alloy spring steel & Stainless steel |Net/Gross Weight: 238/246g | Package: Plastic package with white BoxIMPORTANT: Please do not use huge dilo nor male masturbation cup with this adapter | Please do not wash this adapter with strong detergents in case of rusting | Please do not keep your eyes too close to the attachment when change it.