Pocket Mini Safety Pet Dog Yorkie Cat Training Sound Whistle Keychain 2pcs Red Product Name : Dog Training Whistle;Material : Metal Color : Silver Tone, Red;Whistle Size : 4.5 x 0.8cm/1.8" x 0.3" (L*D) Keyring Diameter : 2.5cm/1";Total Length : 7cm/2.8" Weight : 11g Package : 2 x Dog Training Whistle