Adjustable nylon collar featuring illustrations of dogs and "GOOD BOY" and "GOOD GIRL" flag designs. ◼︎Brand: The BlackLab Company ◼︎Design: Dog illustrations and "GOOD BOY" and "GOOD GIRL" text ◼︎Material: Nylon and metal chain ◼︎Size: (M size) Adjustable ◼︎Can also be used for medium-sized dogs. ◼︎Width: 2cm ◼︎Color: Multicolor (red, green, blue, etc.) ◎ Purchased at the dog training school at the regular price, and my dog (Labrador Retriever) used it about 10 times. Effective for training. ⚠️ Washed with water after use. Stored at a private residence. Please refrain from purchasing if you are looking for a perfect item. Thank you for your understanding.