Beaver Habitat, Size, & Facts. Britannica North American Beaver Stock Image Image: 36483481 Beavers Beaver Trust A Beaver Tale This beaver was sunning herself on a rock ou Flickr. Beaver 25mm Multi Purpose Ratchet Tie Down AssemblySafety Features: Polyester webbing with protective sleeves Double locking mechanism Other Features: Hook & Keeper at each end Materials: RTD straps are 100% polyester which is heat set, stretched and polyurethane (PU) impregnated, resulting in low strain, long life, wear resistance, and durability demanded in flatbed tie down requirements