This is a very economical system that allows you to have dry gloves without permanent alteration to your dry suit seals.  In this kit you get 2 rings, 4 o rings, and 2 exterior gloves.  It is strongly suggested that you run some sand paper over the white rings before installing them on the seal in case a bur has occurred in shipping or handling.  The system is double sealing with 2 o rings and in fact will still work with only one o ring in a pinch.  You must supply the interior gloves of your choice.

Installation and use instructions. 

Price 50.00 plus 6.00 shipping to USA address.