●COUNTERFEIT NOTICE: Riao-Tech is the only authorized seller of Riao-Tech self-defense button We cannot guarantee the fakes you buy from other companies. We appreciate your understanding. Please make sure to check the seller when ordering ●Super lightweight and palm-sized, you can carry it anywhere. A self defense item ●Perfect Item for Women and Children - Tactical Stick Key Chain Key Ring for Meuguan ●Insert your thumb through the ring and grip the body. Be prepared for when you need to keep it discreetly in your bag ●Length 5.5 inches (14 cm) x Diameter 0.6 inches (1.5 cm); Set Includes: 2 buttons + 1 whistle