Pc Material Won'T Rust and Durable. Suitable for Any Size of The Palm and Easy To Control. The Training Clicker Will Have The Clear Sound After Pressing The Button Easily. Big Button for Easy Clicking and Loud Sound. 2 In 1 Functional Design. Press The Heart-Shaped Switch With Your Hand To Make A Loud Clicking Sound. Whistling With Your Mouth Produces High-Frequency Sounds. All With Excellent Penetrating Power. This Ensures That It Can Be Used In Different Environments. It Is Convenient To Carry and Store. You Can Place It In Car. Bag and Pocket To Obtain It Easily When You Need To Train Your Pets. Train To Sit. Come. Stand. Lie Down and Many More. Designed for Dog Training. Start Them Off When Puppies. Suitable for All Dogs. Interactive Behavior Training Between You and Your Dog. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.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. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!