The Lo-Pro roll-up tonneau cover just got that much better with the addition of a new extruded rail system that increases the versatility of the cover. It's ideal for securing ATVs and motorcycles. Quickly and precisely position the four all-steel tie-downs along the rail for just the right angle on heavy or bulky cargo. The heavy-duty anchor clamps give the system a 1,000-lb. working load capacity. Includes the same features and benefits of the Lo Pro tonneau cover.