PROGRIP 921200 Cargo Tie Down and Transport Bundle: (4) XRT Rope Lock Tie Down, (4) Shark Clip with Screw for Tarp, (4) Tie Down Extension Loops Includes four XRT 150 pounds break strength rope locks with 8 feet of 1/4 inch rope Patented rope locks use specially designed ribs to lock the rope inside the wheel hub and is easily tightened with one hand Shark Clips creates additional anchor points to hold down your tarp anywhere Hi Vis Tie Down extenders give an extra anchor point in hard to reach places Stows away in a mesh storage bag and includes instruction booklet