SUPERIOR MEDICAL GRADE SILICONE EXTERIOR,100% body safe.SINLOLI Ben Wa Ball is smooth,non-toxic and odorless.Genuine product:We offer 100% Satisfication Warranty.nCherry shape and velvet soft exterior,hi-quality siliconeu0026#34;tailu0026#34;for easy removal and can bear strong pull force.nErgonomic design,protect vagina wall,perfect fit for all women.100% waterproof,easy to use and wash.n5 progressive kegel exercise weights (1oz up to 3.9oz) ensure you always have a comfortable challenge.nOnly 15 minutes a day and just a week,youu0026#39;ll feel the difference! After 1-2 months, youu0026#39;ll have tighter vagina u0026amp; stronger pelvic muscles.Beautifully Packaged,Discreet Shipping.n