【Sanwa Seisakusho】Disaster Prevention & Crime Prevention Whistle Saikoru Glow-in-the-Dark Condition: Brand new, unused Quantity: 5 Featured on Fuji TV's Mezamashi 8! Selected as the #1 most popular disaster prevention good! 《Size》 Material: ABS resin Size: 47 x 20 x 8mm Weight: 2g Will be wrapped in bubble wrap and sent in an envelope. ▪️Product Information When trapped in a disaster, when being approached by a stranger... - Clearly audible even with a light blow, and delivers a powerful sound! Clearly audible even with a light blow, 3150Hz!!