[IDEA] Have you ever got harassed by strangers when you work overtime/ take mass traffic system? The cute lanyard not only protects your identity cards/city pass, but also includes a designed whistle as one; when villains are incoming, blow the whistle as hard as you can! Keep all the bad guys away!! [Features] Carrying me with you everywhere; we hold your cards and make you a fashion leader besides whistling! It’s so amazing!!! [How to use] 1. Hold your City Pass, sensor card, name card… 2. Blow the whistle below bi bi bi bi bi … ?Specification? Color: Green/Blue/Pink/Yellow Product Size: 53*6.4*1cm(L*W*H) Package Size: 20.2*10.5*2.9cm Material: Metal, Silicone Made in Taiwan