1. High quality ABS plastic construction, not easy to crack and sturdy for long time use. 2. Designed to prevents vehicle from moving by keeping wheel in place. The compact size allows for convenient put in your car while will not take up too much space. 4. Heavy duty construction keeps vehicle steady, sturdy in use. Lightweight for easy pick up from ground, prevents tires from rolling. Size(L*W*H): 15.5*9*9.8cm / 6.1*3.5*3.9Inches
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