The HDP Dock Bumpers in black provide reliable, long-lasting protection for your dock and watercraft by cushioning impacts and preventing damage during docking. Made from blow-molded, high-density polyethylene, these bumpers are built to withstand harsh marine environments while resisting wear, rot, and UV exposure. Featuring a 2.5″ channel slot that easily fits over 2.5″ square posts or round pipe, they deliver a secure, slip-resistant installation for a variety of dock configurations. At 36″ long with a durable build, these marine poly bumpers are an affordable and essential accessory for any dock setup.