Patented Cylindrical Bag with Convertible Top Cover NURU-0001-00-00 Hiking/Sports Bag in blue & orange colors Made of 600D Polyester with expandable capacity at 2 times of its original dimension Before expanded (H x D): 26 x 19-3/4 inches After expanded (H x D): 26 x 24-1/4 inches · Material: 600D polyester Pulley detachable design Pulley securing arrangement is located on an opposite side to the concealed back straps, which allows for easy securing and removing of the pull bar Pulley can be put inside of the pocket reserved when it is not in use Main compartment expands 2 times of capacity at its original dimension Two openings allow users to have access to stuffs from the top or bottom of the bag Top cover is specially designed to coordinate with the expansion and contraction of the diameter of the storage pack thereby showing different patterns with the top cover