Ultrasonic Dog Training Whistle + Pet Training Meter + Leash Set Features: Keep whistle commands consistent, so your dog knows what you expect. The latch is made of PC material, which is scratch-resistant. It is an easy way to train pets and fits in the palm of your hand while you can carry it around your wrist. The lanyard allows you to attach a whistle so you can wear the whistle. Specification:Whistle Material: Copper Clicker Material: PCSomber Material: PolyesterSize:Lanyard: Approx. 50cm/19.68'' Snap-on: Approx. 8*3.5cm/3.14*1.37'' Whistle: Approx. 9cm/3.54'' Clicker Ring: Adjustable Tips:Please allow 1-3cm error due to manual measurement and there will be different color as different display, please understand. Thanks.1 x Lanyard1 x Snap Fast1 x Whistle1 x User Manual1.