Watershed Innovations HydraSorber Water Absorbent Sandless Sandbags, 11-Foot Long by 8-inch Wide Description Features: 11-foot long self-inflating sandless sand tube that can get inflated to a height of 4 inches by absorbing fresh water Perfect for garages and sliding glass doors (no sand/labor required to deploy) Heavy-duty outer layer that is made of natural woven jute and nontoxic inner layer that is made of super absorbent polymer Durable enough to last an entire season and is safe and disposable Fully inflate in less than 3 minutes by submerging in water or self inflate by absorbing incoming water Product Details: Material: Sand Brand: Watershed Innovations Item Weight: 2 Pounds Number of Pieces: 1 Manufacturer: ‎Watershed Innovations Part Number: ‎HydraSorber-Jute-11ft Item Weight: ‎2 pounds Package Dimensions: ‎14.8 x 12.48 x 4.37 inches Item model number: ‎WI-HydraSorber-Jute-11ft Is Discontinued By Manufacturer: ‎No Size: ‎11 Foot Length (Single Unit) Material: ‎Sand Number Of Pieces: ‎1 Batteries Included?: ‎No Batteries Required?: ‎No Date First Available: February 4, 2016