BUCKLE

Light Arc-X Shaped Invisible Whistle Buckle

Retractable hidden whistle design, not easy to fall off；The whistle can be hidden when not in use, and needs to be pulled out when in use；Light-weight design, good fastening, easily open；Be used for contact or seek help

轻弧型X隐形口哨插扣：可伸缩隐形口哨设计，不易掉落；口哨未使用时可隐藏，使用时需滑出；轻量化设计，扣合优良，开启轻松；户外成员之间联络或求救使用