DOUBLE-SIDED SERRATED ANTI-SLIP DESIGN: Both the base and of these wheel chocks are equipped with a dense serrated texture. This design ensures that the chocks firmly grip the ground, significantly enhancing friction and stability to prevent vehicle slippage during parking. ENGINEERED FOR STRENGTH WITH TRIANGULAR STRUCTURE: The triangular shape of these chocks is tailored to match the tire's tilt angle, maximizing contact area for even pressure distribution. Internal reinforcements bolster structural integrity, ensuring superior support and stability. HIGHLY VISIBLE AND MATERIAL: Made from high-hardness engineering plastic, these yellow wheel chocks are not only easy to spot but also built to withstand impacts, wear, and weather elements without aging or cracking, ensuring long-term usability. CONVENIENT FOR STORAGE AND PORTABILITY: These wheel chocks are designed to stack neatly, making them easy to store in your trunk or toolbox. Ideal for daily use, long road trips, camping, or at auto repair shops, they are to your vehicle's stability. Color: As Shown Material: PE Package Contents: 1*Wheel Chocks Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.