BDSM GEAR CAN BE FUN FOR ANYONE

성인용품사용법The 2 rings are divided by a circular collar (in this article coloured reddish-brown) with holes within it. The collar can rotate freely on metal balls that relaxation within the holes. Bearings usually are lubricated to help keep them functioning smoothly. Image courtesy of NASA Glenn Research Heart (NASA-GRC) andIt can be The