Pro-Tek Surgical Pads for Berchtold/Operon OR Tables. Designed for Pressure Management, high risk patients, medium to long duration procedures. 2.5” thick overall. Constructed of medium firm high density comfort foam, a top layer of anti-sheer Pro-tek Memory Foam, covered with 4- way stretch ultra soft vinyl. Fits Berchtold Operon D8500 Surgical Table.