Protect your D-ring shackles from rattling and wear with these heavy-duty rubber isolators. This pack of 4 black rubber rings is specifically designed for 3/4 inch shackles, featuring a 2mm thickness that provides optimal protection and noise reduction. These isolators act as a buffer between your shackle and mounting surface, helping to prevent metal-on-metal contact that can cause unwanted noise and premature wear. Perfect for off-road vehicles, trailers, marine applications, and anywhere D-ring shackles are used. The durable rubber construction maintains its shape and protective properties even under regular use. Easy to install and remove, these isolators are a simple yet effective solution for extending the life of your shackles while keeping operations quieter. Each pack contains enough isolators to outfit two complete shackle sets.