Car owners, RV enthusiasts, and trailer users - these wheel stopper blocks are one of those simple but essential safety items you really should have in your vehicle! This set includes two heavy-duty chocks made from solid ABS plastic that won't crack or degrade over time. Each block measures 6.1 x 3.5 x 3.9 inches (15.5 x 9 x 9.8 cm), making them substantial enough to securely stop vehicle movement while still being compact enough to store easily in your trunk or storage compartment. The total package weight is about 28.8 ounces (816 grams), so they're lightweight to carry but heavy-duty in performance. These anti-slip blocks are universal fit, working with cars, trucks, trailers, RVs, and most other vehicles with standard tires. They're perfect for preventing vehicle roll when you're parked on inclines, changing tires, loading/unloading goods, or doing maintenance work. The design creates solid resistance against tire movement, giving you that extra security and peace of mind when your vehicle needs to stay put. The black ABS plastic is durable and weather-resistant, so they hold up well to outdoor use and various weather conditions. Having two chocks means you can secure both sides of a vehicle or have spavailable. They take up minimal storage space but provide maximum safety benefits. Seriously, for such an affordable price, these wheel stoppers are one of those practical accessories that could prevent accidents and damage to your vehicle. Whether you're a professional who works with vehicles or just a cautious car owner who wants that extra safety measure, these reliable wheel chocks are definitely worth adding to your automotive toolkit.