Sealey ratchetcam buckle tie downs sealey td1508j these ratchet tie down straps from sealey have been manufactured from polyester webbing with stitched reinforcement around hooks suitable for securing loads and tarpaulins onto flat beds or trailers and for general load restraint tie downs rely on the operator tensioning the webbing with body weight while the ratchet mechanically tensions the webbing using a simple drum and ratchet mechanism providing superior load restraint sealey td1508