Dynamic Laser 2 Dolly Wheels with Delrin ball bearings for easy rolling on any surface Tie-down eyelets on all handle and sling fittings to easily secure boat to dolly in storage, on trailers, and racks; and prevents bow slippage on ramps Completely corrosion-proof and maintenance free Strong 3″ non-stretch polyester sling, ideal for boat storage and retrieval in wavy conditions Round-cornered strong structural grade anodized aluminum frame Large handle and balanced load make pulling easy Noticeably light! Average weight 28 lbs/12.7 kg Injection-molded tough glass-reinforced UV protected plastic joint components through-bolted Replacement parts always readily available A Dolly can be CUSTOM MADE for your needs.