This expandable baton measures just 5.5 inches when collapsed and comes with a built-in keychain so you can take it with you at any time. When needed, this baton keychain can be easily extended to 12 inches in length with a flick of the wrist. Despite its small size, this baton is made from high-quality solid steel and can pack a punch on its target. The baton weighs 9 ounces. Note: When retracting the expandable steel baton, simply tap the tip onto a hard surface such as concrete (do not try this on wooden floors as damage may result). Make sure the baton remains vertical when struck on the ground and not tilted, as this may damage the baton.