This oxygen tank holder fits C D and E sized oxygen tanks and fits on the mounting bracket on the back of your Golden scooter * The mounting bracket is standard on the Companions Buzzaround Buzzaround Lite and Avenger * Fits on the universal mounting bracket on the back of the scooter * Can be used on the Companions Buzzaround Buzzaround Lite and Avenger * Key Specs * Weight: 10 lbs