8-Piece Multicolor EVA Foam Exercise Mat for $7.99. Order online for in-store pickup at Staples to lock in the price and save on shipping. Otherwise, shipping is free with Staples Reward membership. Here is a screenshot for reference. The mat is made with anti-fatigue shock absorbing EVA foam, and measures 12.6″L x 12.6″W x 0.375″H per piece.