Please be aware that this is NOT the correct material and will result in high wear and limited gripping force. Our OEM blocks are tested for high performance and manufactured from military grade Aluminum. Automated Rig Technologies purchased C-Tech in April of 2015 and has since increased efficiencies and reduced the price of these blocks by 35% and we have them in stock! Our goal is to reduce cost of ownership, increase up-time, and become your trusted support provider for all your service rig needs. Contact us today, we'd love to talk about your equipment and how to do better to support you!