uxcell Dog Pocket Adjustable Pitch Training Sound Whistle Keychain Dog Training Whistle; Material : Metal Color : Silver Tone; Whistle Size : 5.4 x 0.8cm/2.1" x 0.3" (L*D) Keying Diameter : 1.5cm/0.6";Total Length : 6.5cm/2.6" Weight : 13g 1 x Dog Training Whistle