Description: Easy Installation: Steam Lever for Espresso Machine is designed for easy installation. Simply install it over the existing steam knob and tighten the screw to secure it in place. No need to disassemble your coffee machineFit for different knob sizes: Coffee Steam Lever has double openings to accommodate large and small knobs. Choose the right opening according to the size of your coffee machine's steam knob for a snug fitAluminum Alloy Construction: Steam Lever for Baristas Coffee Maker is made of aluminum alloy, with a stylish look that complements your coffee machineSimple Installation Steps: Replacement Knob for Coffee Machine is easy to install, before installation, please use the included silicone pad to protect the switch from damage. Please follow the steps below, place the non slip silicone pad on the switch, select the correct opening according to the switch width of your machine, and secure, turn clockwise to loosen or counterclockwise to tightenCompatible Models: Coffee Steam Lever Switch Knob Handle is designed for models 8 Size Chart: 10.6cmx4.4cm/4.17inchx1.73inch Package Includes: 1Coffee Steam Lever Note: Please allow slightly errors due to manual measurement and different monitors.