Each neck tie is handmade with great attention to detail. Your dogs collars will slip easily through the opening at the top and you are ready to go.Sizing is as follows:Small Tie: Approx 5 3/4" Tall -- Works best with 1/2" & 5/8" collar WidthsMEDIUM:Tie: Approx 8" Tall -- Works best with 3/4" & 1" collar widthsLARGE:Tie: Approx 9 3/4" Tall -- Works best with 1" & 1 1/4" collar widths