... : Type A: applicable to general rubber, synthetic rubber, vulcanized rubber, soft rubber, leather, wax, etc. Type C: applicable to the hardness ... test of rubber microporous material.Type D: applicable to hard rubber, hard resin, acrylic, glass, cushiony plastic cement, printing plates, fiber ... -20~100HD20~90 HDSR 0.1 mmDetailed pictures:Inside packing: Hard Plastic Or Glass Durometer