Slant Board Squat Wedge for Calf Stretching3 Pcs 12 x 6.3 Foot Stretcher Balance Board for Plantar Fasciitis, Adjustable Foam Slant Board Wedge Great for Exercises (Black)

What is a Slant Board? The slant board is an EPP materials that are non-toxic, odorless, waterproof, and oil-proof, which is not only recyclable, but also degrades naturally without causing white poll...