.* 1/4 - 4/4 cello string lifter, used to change cello bridge, safely lift strings on the serrated top of the jack to hold the strings in place, very useful tool.* String jack at the same time marks the exact position of the new bridge. The top is serrated to fit any string configuration.* Safely lift strings on the serrated top of the jack to hold strings in place* Practical tool for, adjusting, and assembling bridges.* Designed to lift tensioned strings from an installed bridge, allowing you to work without the risk of dropping soundpost. Specifications:Material: Made of fiber-reinforced plastic. Size: 70mm(W)*78mm 100mm(H adjustable)Color: BlackWeight: 50gPackage Included:1x Cello Strings Lifter