EarlyBirdSavings 3-Section Straight Retractable Alpenstock Walking Stick 130CM Black A spring shock absorber, spiral triple lock Spring suspension system: can reduce the impact of the wrist, arm and shoulder Adjustable rod lever: the adjustment rod is divided into three sections, more portable and more durable Fixed bolt design: 1/4 turn shaft can be tightened Max. height: 135cm( 53" ) Min. folded height: 66cm( 30" ).Material: Aluminum alloy