Fourposition incline for targeted stretching: tilts to four angles to vary intensity and reach different calf and lowerleg muscles as flexibility improves. Nonslip and easy to clean: stable, nonslip surface for safer use; simply wipe with a cloth or rinse with water to keep it clean. Lightweight and portable: compact design for easy transport and storage; adjustable incline supports users of all levels and routines. Durable PP foam material: waterproof, odorless and sturdy for long lasting use; provides a safe, comfortable base for calf stretching. Use scenarios: Pre run warm up to activate calves and improve ankle mobility. Post workout cooldown to release tension and increase flexibility. Daily at home routine for beginners to advanced, including desk workers seeking mobility and recovery. Why you need it: Improves stretch variety with four angles to match your progress. Stable, easy to clean, and gentle on joints due to soft yet firm foam base. Lightweight, portable, and compatible with most stretching routines.