Features: 1Using high quality materials it is made of durable high speed steel strong and stable not easily deformed and has a long service life. 2Simple to use you only need to unfold the copper pipe when installing the air conditioner this product can connect two copper pipes to each other. 3Time saving and labor saving design it only needs to be installed on the electric drill it can effortlessly help you install it and apply it to the copper pipe. 4Small in size it is sturdy and portable can be easily used in various situations and will not take up extra space when storing. 5Professional design it is suitable for air conditioning installation etc. and can be used on pipelines that need to be expanded or connected. Specification: Item Type: Tube ExpanderWeight: Approx. 315g / 11.1ozProduct Size: Approx. 96mm / 3.8in86mm / 3.4in85mm / 3.3in87mm / 3.4in89mm / 3.5inMaterial: High Speed SteelsScope of Application: It is suitable for air conditioning installation etc. Package List: 5 x Tube Expander