Setting Blocks 80 +/-5 Durometer EPDM Setting Blocks 80 +/-5 Durometer EPDM/Silicone Rolls 80 +/-5 Durometer Santoprene Setting Blocks 80 +/-5 Durometer Silicone Setting Blocks Anti-Walk Side Spacers (W Blocks) 80 +/-5 Durometer EPDM Clear Mirror Setting Blocks