These inflatable rollers make it easy to launch and land a small boat on beaches. Use two or three of them to move your boat down the beach over sand and rocks and into the water, then simply stow them aboard as additional buoyancy or deflate them to save space. They are quickly inflated again when you are ready to beach your boat.
A great alternative to a launching trolley for rough ground.
They are made of PVC with a double tear-proof wall.