100% medical grade silicone
Fitting must be done by a physician, so you must know your proper size and type.
Size Dimension (Inch)
1 (RKS1) 2.00"
2 (RKS2) 2.25"
3 (RKS3) 2.50"
4 (RKS4) 2.75"
5 (RKS5) 3.00"
6 (RKS6) 3.25"
7 (RKS7) 3.50"
~~~Please make sure you know your correct size before placing an order.~~