It is usable for dogs with neck sizes of between inches and inches and weighing to lbs. 이 제품은 털복숭이 친구들에게 안전하며, 개가 덜 짖도록 인도적인 방법으로 훈련하는 데 유용합니다. If you are not home often, then this is an excellent product to train your dog while you are away.