[Wide Compatibility] Vacuum cleaner accessories fit most (not all) vacuum cleaners. The vacuum adapter kit includes a 6.5cm to 3.8cm vacuum hose adapter and a 4.7cm to 4.5cm vacuum adapter, giving you a wide range of applications to meet all your different daily cleaning needs, suitable for most vacuum cleaners. Not available with ID Shop 2 1/4 inch vacuum fittings. [2.5 inch (~6.3 cm) to 1.25 inch (~3.8 cm) Vacuum Hose Adapter] Suitable for most 2.5 inch (~6.3 cm) and 1.25 inch (~3.8 cm) hose systems. The 2.5 inch (~6.4 cm) to 1.25 inch (~3.2 cm) reducer allows you to use all vacuum cleaners with an inner diameter of 1 1/4 inches (~6.4 cm). The large end is 2.45 inches (approximately 6.2 cm) in outer diameter and 2.25 inches (approximately 5.7 cm) in inner diameter. The small end is 1.25 inches (approximately 3.0 cm) long and 1 inch (approximately 2.5 cm) in inner diameter. [Universal 5-layer vacuum cleaner adapter] The rubber vacuum cleaner adapter can be easily cut into 5 sizes of