Product Dimensions: This professional slant board measures 12.6 x 15. It can be adjusted to 4 positions: 15, 20, 25, 30. (Product does not include tensioners) Solid Construction: Made of high-quality plywood, shaped like a triangular structure, our calf stretcher is durable and can support up to 450 lbs, ensuring stability during exercise. Ensure Your Safety: With a non-slip EVA base, our slant board ensures your safety and confidence during your workout. Suitable for beginners, veteran athletes, and all body types. Versatile Application: Ankle stretch board has an upgraded pull ring, slant board for calf stretching can help you relieve symptoms of plantar fasciitis, Achilles tendonitis, patellar tendonitis, shin splints, calf strains, ankle sprains, hip pain, tight calves, and hamstrings. Portable Design: With a portable design for easy storage and transport, the slant board does not take up much space. It can be an ideal gift for your friends and family.