Dog collars with dog-related themes. Our dog collars come in 5/8 inch, 3/4 inch, 1 inch, 1.5 inch and 2 inch widths. Need smaller widths for tiny pups? Check out our Teeny Dog Collection. All designs are available with personalization in any design choice. Quick release buckles come in standard black, colors, nickel metal, or aluminum metal. Martingale collars come with or without buckles. Chain martingale collars are available with or without buckles. Flyball collars come standard as quick release buckle collars and a loop handle. All collars include a welded D ring for leash attachment and an adjustable slider to coordinate with the buckle.