These very soft and stretchy rings can be used as a buffer between the bodies of both partners or between the body and the base of a toy. This way you can easily determine the depth of penetration. The rings can be placed around the penis or a dildo/vibrator. They can also be combined with condoms: First pull the condom over the penis, then apply some lubricant to the tip and finally slide the desired number of rings over the penis. The 4 rings together have a height of 7 cm and can be stretched up to a width of 20 cm. The material consists of a polymer mixture: it is free from BPA and plasticisers (phthalates). A major advantage of this material is that it can be used with both water-based and silicone-based lubricants.