Made of aluminum alloy, rust-proof, corrosion-resistant, high strength and . With ratchet design, easy to install and use. Cable tightener suitable for round or oval swimming pools of different sizes, brushed cable tightener for Vineyard Kiwi Farm Material: Aluminum alloy colour: Silver Package Contents: 5 x Tightener Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.