Replacement wrist gasket for Kokatat drywear. These latex seals for drysuits/tops are as good as you can buy. Comes in 2 sizes, small and large. Small suits come with small gaskets, all others come standard with large. Attach with the PB-300, or Aquaseal (sold separately). 
Standard seals are .026" thick. 
Please Note: Kokatat has changed gasket suppliers in the past year so gaskets may look slightly different than they have in the past.