By simply attaching these wheels to your tender, you will be easily able to wheel your tender anywhere over hard sand and paved surfaces. You will no longer risk damaging your tender by dragging it or struggle to carry it any longer! Waveline Tender Wheels are easily installed on wood, fibreglass, or aluminium transoms. The wheel is designed to be permanently fixed to your tender without inhibiting performance. These wheels are made from lightweight, yet strong Mineral Fibre with Industrial Nylon. Resistant to outdoor elements, they will not rust, corrode or deteriorate in the sun or sea. The wheels are also maintenance-free and self-lubricating. Stainless Steel pins also offer great strength to the wheels.