Product descriptions:item no.: rm-1616name: aluminium kayak j racksmaterial: aluminium tube uv-resistan pvc holder uv-resistant foam protective sleeve surface treatment: powder coatingloading capacity: 80kgfeatures:carries 1 kayakcanoe and 1 paddlequick onoff hardware can be easily & quickly installation and removal and fit most of cross barsall the tubes and hardwares are aluminium and with rust-resistant coating for longer use lifeone pair of 3.68m strap is included.