Not Fit For Not Fit For 1 3/8, 1 1/2, 1 7/8, 2 1/2 inch vacuum cleaner hose or vacuum attachments (Don’t fit for Shark. Don’t fit for Dyson. Don’t fit for Miele). The wand and other attachment you want to connect with the wand are held together by friction. The outside diameter of the small end is 1.22"(31mm), so the small end of our Huiaway vacuum extension wand can also be attached to any vacuum accessories with 1.25"(32mm) inner diameter such as our brush, flexible flat suction nozzle, upholstery tool, crevice nozzle by friction. The inner diameter of the large end is 1.25" (32mm), so the outside diameter of the vacuum attachments or vacuum hose you want to attached with the large end should be 1.22" (31mm) or 1.21 (30.7mm). Easy to extend and store: The sturdy metal wand can be adjusted by the black button for your comfort, the maximum length can be extended to 31.9 inch. It collapses for easy storage. Great tool to help cleaning high and low places. The extension wand attached to your vacuum can help you reach high up to get cobwebs off the ceiling and keep you from bending to reach under radiators or dressers.