Preston's adjustable collarsallow for a personal fit. Matching leads are available in 4' or 6' lengths.Ribbon designs are sewn onto coordinating nylon webbing creating a polishedlook. Select ribbons are available in 3widths.Preston collars and leads aremade in Massachusetts!DOGS:1/2 in. size (Tiny) ribbon selections are: T-XXXS: 7 in. (not adjustable)T-XXS: 7-10 in. T-XS: 9-13 in.T-Leash: 4 ft. T-Leash: 6 ft.3/4 in. size ribbon selections are:XS 10-15"SM 11-18"MD 12-20"1 1/4 in. size (Wide) ribbon selections are:W-Small: 11-18 in.W-Medium: 12-20 in.W-Large: 15-24 in.W-XLarge: 18-28 in.W-Leash: 4 ft.W-Leash: 6 ft.CATS 1/2 in. or Tiny ribbons (breakaway closure)TCAT8: 8 in.TCAT10: 10 in. Martingale Collars:Adjustable, Slip-on collar. Great for Sight Hounds or dogs who slip out oftheir collars. Sizes:S 3/4 in. width(9-13")M 3/4 in. width (10-16")M 1 1/4 in. width (10-16")L 1 1/4 in. width (13-18")XL 1 1/4 in. width (15-21")Martingale Collars:Side Buckle Release. Sizes:S 3/4 in. (11-18")M 3/4 in. (12-20")M 1 1/4 in. (12-20)L 1/1/4 in. (15-24")XL 1 1/4 in. (18.28")Step In Harness:1/2" Step In Harness Size:XXS (9-12")XS (11-16")3/4" Step In Harness Sizes:XS (11-16")S (14-22")M (18-28")1 1/4" step-in(SI) harnesses:Medium: 18-28"Large: 22-33"XLarge: 27-42"Standard "H" Style Harness 3/4" only sizes:14" (12-16")16" (15-17")18" (16-19")20" (19-25")22" (21-27")24" (22-29")