Four-angle adjustability - Tilt the slant board to four practical angles to target different muscle groups, allowing a versatile and effective calf stretching routine. Easy maintenance - Non-slip surface that is easy to clean; wipe with a cloth or rinse with water to quickly restore cleanliness and traction. Unisex design - Adjustable inclines for unique calf stretches suitable for both men and women, providing convenient use for users at any skill level. Durable and safe construction - Made from high-quality PP Foam material; waterproof and odorless, delivering long-lasting, safe support for calf stretching. Use scenarios - Post-workout or run: use the board at an incline to stretch calves and improve flexibility after activity. - Pre-workout warm-up: incorporate gentle incline positions to activate calf muscles before training. - Office or home breaks: perform short calf stretches during breaks to relieve stiffness from long periods of sitting.