The MX series batons feature a positve lock system and epoxy coated aluminum tube shaft. They open with the same high cracking sound as friction lock batons but lock open with a push button pin mechanism rather than friction; it cannot collapse until you want it to. Open it with a flick of the wrist or be gently pulling the shaft quietly and smoothly. To close, simply push the locking pin down and then push the shaft in from the tip.