At least 1 dock bumpers for boats for every 10 ft of waterline length. 【Marine-Grade Material】This boat fenders for docking made of high-quality vinyl,seamless one-piece construction prevents from splitting up and features a high performance of compression resistance; UV protection gives the boat fender more power to outlast harsh weather. You're sure to find the perfect colorway to match your boat. The biggest discount we found is 10%% on VEITHI Boat Fenders 4 Pack, Ribbed Twin Eyes Vinyl Boat Fenders Bumpers, Boat Bumpers for Docking Come with Ropes Needles and Pump to Inflate, Small Bumpers of Boats 4.5 x 16 inch Sky Blue at Amazon How do they deflate? You can just insert the included needle into the valve and squeezing the air out, then removing the needle, would do the trick. We recommend all boats carry at minimum 3 fender bumpers for boats. pontoon boat fenders with ribbed on all sides increase friction and resist abrasion, making it strong enough to withstand external force extrusion. you can hang the bumpers for boats vertically or horizontally with the two eyelets according to your needs, easy to install and disassemble and help the boat fenders for docking attach to boat more firmly. Product Specifications: Recommended Boat Size: 28FT--38FT Product Size: 8.5inch(D) x 27inch(H) Rope Size: 3/8inch(D) x 5ft(L) Product Material: High-Quality Vinyl Package Includes: 4 x Boat Fenders 4 x Boat Fenders Ropes 1 x Inflation Pump 4 x Inflation Needle which makes your boat more appealing. 【Reinforced Twin Eyelets Design】Boat bumpers eyelets are reinforced to prevent breaking in daily use. marine bumpers for boats very handy to use and take only 35 seconds to inflate. Raised Dog Bed FIOCCO Elevated Dog Bed - Dog Cot With Chew These well made durable boat bumpers for dock play very important protective role in collisions caused by ships docking or sailing. boat dock fenders bumpers for long-term use. Boat Fenders VEITHI 4 Packs, Ribbed Twin Eyes Vinyl Boat Bumpers Boat Fenders And Bumpers