Nov 08, 2018 · COMPACT YET EFFECTIVE: At only 8 x 3.5 inches you can store your Chock Blocks in the trunk, toolbox, or even behind the seat. Plus, the large 4.5-inch height stops the heaviest vehicle, RV or trailer from rollback (even on large truck tires), so you can confidently park on any downhill grade. › See more product details
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