Strong construction: The slant board is built from polypropylene and TPE. Its triangular frame stays rigid and deformation , providing a stable base for stretches and workouts. 15 angles adjustable: 15 adjustable incline positions. Set the angle to match your flexibility and goals. Lower angles for gentle mobility, higher angles for deeper stretch. Anti slip and massage: Non slip rubber bottom keeps the board in place on any surface. Raised heel design offers secure footing and a subtle massaging effect. Ergonomic office footrest: Elevates feet and legs to support better posture at a desk or after activity. Use scenarios: Office work: place under the desk to improve circulation and posture during long sessions. Calf and hamstring routine: adjust angle for progressive stretching before and after workouts. Recovery and mobility: use after runs or training to loosen calves and reduce fatigue. Specs: Material PP and TPE; 15 position incline; anti slip bottom; compact design.