The stanley sta 1 97 515 soft bag on wheels is 18 inches and made from a heavy duty 600 denier fabric that resists cuts and scratches the bag has a rigid bulky structure design and removable dividers which are hardwearing strong and durable in addition the extendable easy carriage handle makes it convenient to manoeuvre the bag the stanley sta 1 97 515 soft bag has multiple internal and external pockets for maximum organisation and secure storage of small parts or personal items it has easy acce