These nickel finish paw studs are very cute and toonish. I can put them on vertically or horizontally (spun 90 degrees as you wish), so they are appropriate for collars, harnesses, or any other strap where you'd like to see a paw print! they measure just a hair over 3/4 inch wide, by 5/8ths of an inch tall. Therefore, they must be attached to a strap a minimum of 3/4 inch tall, or 1 inch wide (if you want them on a vertical, like a leash). Pictured is the stud on a 1 inch wide latigo strap.

If you are unsure of the quantity of studs that will fit your strap, you may either inquire first, or order more than you think you need. I can refund an overage, but not charge more for extra (unless you make a new order, which is more complicated for both of us).