All-Aluminum Magnesium Alloy Case 24 Pull Rod Case Universal WheelProduct information: Capacity: 36 55L Internal structure of bag: zipper bag, mobile phone bag, certificate bag, sandwich zipper bag, computer bag, camera bag Material: ABS+PC With or without lock: Yes Function: waterproof, anti theft, and computer access Roller style: universal wheel Size information: 20 inch (width, thickness and height): 34 * 21. 5 * 54cm 24 inch (width, thickness and height): 41 * 25 * 64cm 26 inch (width, thickness and height):