platform. Just fill the anchor bag with sand

durable reinforced PVC/polyester tri-laminate, turns any towable tube into an awesome portable swim platform. Just fill the anchor bag with sand or rocks, attach the giant acetyl snap hook to your tube’s handle or tow strap, and drop into the water. The included 20-foot rope also contains a buoy with a convenient mesh stowage compartment for the extra slack rope. You’ll be stylin’ on the water with this excellent tube accessory