Looks like a good quality tarp.
If I were to make this then it would probably be a:
- small tarp about the size of the tire (slightly bigger)
- horse stall mat or similar hard rubber
- eye bolts (could get away with screws)
- foam/padding/old towels of some description
Place the tire on the ground
Place the mat on the tire
Lay out your tarp and mark out where the ringlets are
Drill a hole big enough for the eye bolts at each mark
Thread the bolts through the tire and Matt and secure them
Put as much padding as required on the mat
Lay the tarp over
Thread the rope through the tarp and ringlets (probably want to offset so each ringlet sits halfway between each eye bolts)
Pull the rope taut and tie the ends together tightly
Trim any excess rope.
But we just use a tire and horse stall mat. That works a treat and the tire can be used for logs, DBs, etc and minimises the chances of it rolling in a direction you don’t want.
Brian Alsruhe has a stack of high density foam mats (commonly used for martial arts and children’s flooring) trimmed, stuck together and placed in a box that’s about 10" high, that’s a very neat solution.