Purchased this year in the UK. It was a bit too big for my Labrador because I didn't measure properly, so I never used it. If you are considering purchasing, I recommend measuring your dog's neck and mouth properly! This is a head collar for training dogs to stop pulling during walks. You can search for "Halti Headcollar Dog Pulling Prevention Collar Large Dog Black Size 4" to find more details. - Brand: Halti - Color: Black - Model Name: Train Headcollar - Size: 4 How to measure size: https://www.amazon.co.jp/vdp/04441463e77f45b99282fdbafa9b1703?ref=anp_ios_dp-media-block_share Thank you for looking.