Sand Bags – Red. Ideal for adding weight to spine boards, outdoor signs and other outdoor equipment. Constructed of strong 10 oz vinyl-coated nylon. Features Velcro closures. Resealable inner pouch may be filled with sand (up to 6 lbs) or lightweight foam beads (not-included). Dimensions: 15.9 x 33.7 cm (6-1/4 x 13-1/4″). Sold as Each.