Multi V-Drive Belts are almost universally used on auxiliary drive systems on modern motor vehicles. To ensure maximum belt life and avoid premature wear or belt derailment it is important to ensure that all the pulleys are correctly aligned. Designed to check the alignment of Multi-V pulleys prior to fitting a new belt.Manually adjustable silver steel alignment rod. Length: 250mm. Main segment equipped with attachment magnets. Target segment design to be held by hand where required.