Lynx Levelers Stop 'N Chock

 This chock system has pop ups in mind. You can use it in two ways.

1. Place a single chock at the top of the stack. When you back the pop up onto the ramp, the tire hits the chock and your at the top.
2. Use two as a wheel locking system. With smaller pop ups, you can place one at the top of the stack, then push the pop up onto the chock. Insert another chock in front of the wheel and let the pop up rest between them