Material: High Elastic Rubber Band and High Quality Pressure Variable PU Leather.EASY TRAVEL: Elastic luggage straps can help you secure a second suitcase, coat, suitcase or case in a carry-on or wheeled suitcase, handle women's suitcase or cosmetic case, make your suitcase super light and look Stylishly and securely stack extra luggage.BUCKLE STORAGE & CROSS DESIGN: Adjustable elastic strap so it can easily stretch around larger bags, or you can tighten it to securely strap your hand luggage to the handle of the wheeled suitcase, without twisting or slipping. Enough to adjust the length for your second bag or box.