Vacuum Attachments Compatible Models: These vacuum attachments are suitable for Most Vaccum (but not all). Vacuum adapter kit includes 1 7/8Inch to 1 3/8Inch to 1 1/4 to 1Inch vacuum adapters and 2 1/2Inch to 1 1/4Inch vacuum hose adapters.2 1/2Inch to 1 1/4Inch Vacuum Hose Adapter: Fits most 2-1/2Inch and 1-1/4Inch hose systems. 2.5Inch to 1.25Inch reducer enables you to use all your 1 1/4Inch inner diameter vacuum attachments with a 2 1/2Inch inner diameter vacuum cleaner. Big end measures 2.44Inch OD and 2.26Inch ID. The small end measures 1.18Inch OD and 1Inch ID.Vacuum Extension Wand: The vacuum extension wand's length is 14.6Inch. The small end outer diameter is 1.22Inch(31mm), which can be connected to vacuum accessories with an inner diameter of 1 1/4Inch (1.25Inch) (32mm). The end outside diameter is 1 1/4Inch (1.25Inch) (32mm) and can be connected to vacuum attachments with an outside diameter of 1.22Inch (31mm) or 1.21Inch (30.7mm) and an inside diameter of 1.37Inch (35mm).11 Pcs Universal Vacuum Attachments for Accessories: 2 x 2 1/2inch to 1 1/4inch vacuum hose adapter, 2 x vacuum extension tube,1 x sofa dusting brush, 1 x horse hair dust brush, 1 x 2-in-1 crevice tool, 1 x crevice tool, 1 x upholstery tool, 1 x flexible crevice, 1 x dust brush (tube part, black adapter, blue adapter).Note:Please measure and confirm the diameter of your vacuum accessories before purchasing. Not Fit for accessories with 2 1/4 inch inner diameter.Colour:As ShownMaterial:PlasticPackage Contents:1set * vacuum attachmentOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.