Description: Practical size adapter: the adapter can switch between 48mm vacuums cleaner(outer diameter) and 40mm(inner diameter) attachments, please check the size to confirm whether the adapter fits. Package includes: you will receive 1 pieces 48 mm to 40 mm vacuum cleaner hose universal adapter, they are practical tools for you, quality material can meet your long time usage. Convenient to use: the dust collector adapter attachment is easy to use, no need any other tools, you just need to insert the hose into the adapter and can complete; Suitable for people from many kinds of ages to use. Quality material: the vacuum cleaner hose adapter is made of quality durable material, compact size and light weight, it can serve you for a long time and don't need to replace frequently. Wide applications: the vacuum cleaner attachment adapter can be applied for wet and dry pick up; It is appropriate for connected many cleaner brushes, the different brush heads connected can have different cleaning effect, such as floors, carpets, curtains and cleaning irregular surfaces, sofas and narrow areas. Size Chart: Length: 9.5cm/3.74inch Package Includes: 1 Vacuum Cleaner Adapter(4 Pack) Note: Please allow slightly errors due to manual measurement and different monitors.