TX Keyboard Multi Tool is a 5-in-1 tool that has five useful functions. It can be used to remove switches, remove keycaps, open switches, measure PCB thickness, and measure the stem pole length. TX Multi Tool 5-in-1 Features: Switch Puller: Protective films are included to attach when in use for pulling switches but caution is needed since this tool is made of metal. Be careful of metal-to-metal contact. Keycap Puller: 1U, 2U, and 3U Attachment Switch Opener: Compatible with MX and Kailh Switches PCB Thickness Measuring: each section will have 3 slots to measure (small to big) 1.6mm: 1.55mm, 1.6mm, 1.65mm 1.2mm: 1.15mm, 1.2mm, 1.25mm Stem Length Measuring: Long-pole or Standard-pole Includes: 1 TX Multi-Tool 1 1U Keycap Puller Attachment 1 2U Keycap Puller Attachment 1 3U Keycap Puller Attachment 2 Keyboard Protector for Switch Puller