Perfect for teaching basic gymnastics and exercises to children ages 3-9. Nylon reinforced tough 18 oz. vinyl cover uses double reinforced. Nylon stitched inverted seams to create smooth working surface. Each mat has 2 ft. panels and 2 ft. folds for easy handling and storage. Mats are so light even young children can move and store. Designed for pre-school and elementary school programs. Hook and Loop fasteners on ends only. 100 ILD polyfoam. Warranty: One year.