1.Delivery contents: You will receive 6 elevated squat wedge blocks, 2 pieces each with 3 different slopes. You can combine any combination of training angles to meet the needs of a variety of sports. Combination of 3 pieces with different slopes, can carry up to 150 kg 2.Premium material: Made of nonslip, highquality foam material, waterproof, oilproof, odorless and recyclable. Our adjustable, nonslip rubber calf stretcher has the advantage of being lightweight and highquality. You can take the squat ramp to any sports venue for stretching before and after sports 3.Adjustable and stackable The components of the 6 slant boards for calf stretching can be ly combined to adjust the angle and easily stacked to increase or decrease the range of motion for optimal training results, adding variety and challenge to your workout 4.Protect your legs: Use the elevated squat wedge block for calf stretching in your fitness program to improve flexibility, reduce muscle tension and reduce the risk of injury. Our slant calf stretcher board also targets the key muscles in the knees, hips and lower body to promote strength, stability and balance