LEZYNE TOOL INSERT KIT M New. A convenient wrench set that can be installed inside the handlebar by removing the handlebar end. The body is made of lightweight and durable high-precision forged aluminum alloy. It also functions as a bar end, and can be installed on most flat handlebars with the included three O-rings. Set Contents (M) ■ Hex bit x 5 sizes: 3, 4, 5, 6, 10mm ■ Torx bit x 2 sizes: T10, T25 ■ Phillips bit SPEC ■ Forged aluminum ■ Can be stored in the grip part of the handlebar ■ 3 sizes of O-rings included