I don't know what it fits but measures 21" long by 2 1/2" wide and 2 1/2 high. Tool box door is 10. Great patina that displays very nicely. The item "VINTAGE PRE WAR BICYCLE HANGING TOOL BOX TANK SIDE OPENING DOOR ORIGINAL" is in sale since Sunday, March 29, 2020.This item is in the category "Collectibles\Transportation\Bicycles\Bicycle Parts". The seller is "wcmron" and is located in Ocean City, New Jersey. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Mexico, New Zealand, Singapore, Switzerland, Norway, Saudi arabia, United arab emirates, Qatar, Kuwait, Croatia, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Uruguay.