Smart Dog Toy Ball Electronic Interactive Pet Toy Moving Ball USB Automatic Moving Bounce Puppy Birthday Gift Product Is Relatively Small And Not Recommended For Large Dogs, Dog Toys, Cat Toys, Outdoor Sports Toys. Dogs Have Very Sharp Teeth And It Is Normal To Be Bitten. If You Mind, Please Don't Buy. Please Check The SKU Spec Chart Before Purchasing. There Are Size Instructions. Please Do Not Say That The Product Is Too Small After Purchasing.