The product will be delivered to the front door.Do not hold the packing band when carrying the item.The band may come off very dangerous.The color (clasp) may be loose during use.Restore loose collars and train safely.We cannot determine the compatibility of other products other than our products.Please be aware that if the product has initial defects or missing products, it will take 2 to 3 days for delivery.We cannot accept complaints of products that have elapsed 7 days from the delivery.(Please check within 7 days. Shape, color and specifications may change without prior notice for product improvements.