Compatibility with various vacuum models is guaranteed by these attachments, including a vacuum adapter kit with a variety of size options. The 5-layer universal vacuum adapter is designed with different outer diameters to connect to shop vac attachments of various inner diameters. The vacuum extension wand features different outer diameters at each end to connect to vacuum accessories and attachments of different sizes. It is important to measure the diameter of your vacuum accessories before purchasing to ensure compatibility. The 15-piece universal vacuum attachments kit includes a variety of adapter sizes, wide brush attachments, crevice tools, upholstery tool, and extension tubes.