With lock design, high transparent lens could check on paper use . Waterproof, dust proof, anti- theftSuitable for jumbo roll paper towel, the max diameter of paper is 250mm, have two inner cores, the small one core is 48mm,and the big one core is 73mmAdvanced imported raw materials, sturdy and durable. The shell can be removed and it installs easilySuitable for hospitals, hotels, offices, homes etcPVC plastic