Stamped 304 stainless steel. Material Pull w/o Rubber Gasket A 1-15/16" B 1-1/4" C 1/8" D 3/16" Provides a simple and convenient way to open the hatches. Easy-to-install, it features a stainless steel washer and a rubber gasket to reduce noise and resist water penetration. Commonly used on deck mounted access hatches, it not only looks attractive, but is durable for harsh marine conditions. Requires a 3/16? hole. Flange pull is 1-1/4? in diameter x 1/8? thick.