This heavy duty "Plug & Press" push up board system with multiple. It has ergonomic design, practical in using, simple assembly, portable. It burn calories and build strength with this product, guiding you through a total-body strength and conditioning workout. It can maximizes overall upper body strength and endurance, designed for all fitness levels. Plug and Press push up board design, 360 stability with non-skid platform, safe and practical. Push Up is an innovative color-coded push up board training system that strengthens and shaping your entire upper body (chest, shoulders, back, and arms), while engaging your total core.