Gaiam Yoga Sand Bag, Navy Adds weight to your practice (sand not included) Leak proof bag will help you deepen your poses and lengthen your reach Holds up to 10 pounds of sand, and features an inner lining zipper for easy fill and is machine washable A sturdy top carry handle makes it easy to carry or position in poses 15.5"L x 7.2"W x 1.5" thick