RB Max had a black leather one with studs, a choaker turned into a non-choaking chain collar, & a blue nylon snap one for swimming. But he only wore them if he was leaving the house & 90% of the time we never put them on him. They always choaked him & made him cough no matter how snug or loose it was. But all u had to do to get it on was hold it out & tell him to put on his coller & he would get up & walk into it.