Engage your core effectively during your workout with the Gaiam Core Sliding Discs 2-Pack. These 2-sided discs have a different material on each side, allowing you to use them on hard flooring and carpet. The discs produce consistent and flowing movements, helping you engage and strengthen your core when you perform mountain climbers, plank pikes and other floor exercises. Gaiam Core Sliding Discs 2-Pack - Hand Exer. Equip. at Academy Sports