New Wheel Chock from Ballards
Now here's a handy item. I once attempted to make a similar thing. The first attempt managed to bend a brake disc. Undetered I made another, which cut into the tyre, ruining it. If only I could have bought one of these instead!!
From Ballards, RRP of only $69.95 features chrome plating, and a quick release clamp.
Available direct from: Ballards Off Road