This cast-iron round baluster collar fits over 5/8" square material. You can add this collar to a plain baluster to dress it up. Each collar is 1-3/4" wide, 2-21/32"" high and weighs .57 lbs. These wrought iron components compliment any traditional or modern commercial or home design weather. By combining other designs, you can create a fence, stair or balcony railing that will make your project unique.