The Half Moon and Core (sold together) can be stacked together or used separately to boost any workout. Use them for incline or decline push ups, crunches, or in an obstacle course or in plyometric workout sessions -- because there's no reason getting in great shape shouldn't be fun! Size: Stacked 20 T X 40 W.Vinyl and foam construction.Specifications Age All Ages Bag Type Not Applicable Bag Weight Not Applicable Brand Not Applicable Height Not Applicable Line Not Applicable Martial Arts Style Not Applicable Resistance Type Not Applicable Shape Miscellaneous Target Type Not Applicable Training Accessories Type Agility Weighted Gear Type Miscellaneous Search Synonyms agility training equipment, stacked, balance, plyometric workout, calisthenics, indoor gym, turf