Package Content: You will receive 4 pieces of high pitched plastic dog whistles in black, red, orange and purple, different beautiful colors to suit every outfit and occasion. . Material: High Quality Plastic, Made from quality durable plastics, you can expect a long service life. . Clear Signals: This dog whistle ensures your dog can receive clear signals and commands in a noisy environment. Communication between you and your dog becomes much clearer and easier. . Purpose: to train your puppy/dog different commands and get your pet to follow your instructions, the dog whistle allows you to train your dog to stop barking, sit, lie down, stay, etc. . Application: The whistle is suitable for sporting, hunting, herding, guide and rescue dogs. . About Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping Thanks for your cooperation and we'll make you feel satisfied.