KO-1 is a red open cell extra firm density
                   sponge rubber commonly used for flat die ejection applications.  It has a Durometer "A" scale reading of 20 - 30 and a Durometer "00" scale reading of 70 - 80.  The sheet size is an 18" x 36" and comes in many different heights: 1/8", 3/16", 1/4", 7mm", 5/16", 3/8", 7/16", 1/2", 5/8" and can be kiss-cut or strip-cut to any size to suit your needs.

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