These are solid collars with D and O Rings. These are 19 inch collars with plenty of holes to fit beagles or walkers. Width is 1 inch. Includes nameplate with up to 3 lines. Nameplates are electronically engraved for very clear and neat reading. These nameplates are thicker and heavier duty than the normal stamped nameplate. The more text the smaller the letters but still very clear. Limit is 21 characters per line. Buy a dozen and receive .50 off each collar.