Kwik Tek Big Crossover Snow and Water Tube Heavy-Gauge 6P PVC with Cold-Crack Additive, Slick Durable PVC Tarpaulin Bottom, Dual Functionality for Sledding + Towable Heat Sealed Seams Patented Speed Safety Valve for Fast Inflation and Deflation Double Webbing Foam Handles with EVA Foam Knuckle Pads Heavy-Duty Double Stitched Partial Nylon Cover