[Features] Premium Material: This puppy training kit is made of high-quality plastic, it can emit a pitch that is perfect for your pet's hearing, strong and durable, and will keep the pitch even after years of use. Effective Training Petscan be used to train your dog's basic obedience skills and advanced actions such as sitting, lying, fetching, and rolling over, allowing your pet to follow your instructions and correct bad behavior. Wide applicationThe training whistle is not only a great tool for training dogs, but is also very suitable for training cats, birds, horses and other animals, and can be used as a tool for issuing commands or warnings. [product information] Name:whistle Color:black Product material:plastic Product size: length=8cm Packing list (you can get after purchasing one item): 2 whistles Please understand: 1. Due to the long shipping time, the item may be damaged during the shipping process, if the item is damaged, please leave us a message through the official website immediately before posting comments, and I will solve the problem for you. 2. Due to manual measurement, the size may have an error of 1-3cm. 3. Colors may vary from monitor to monitor.