Additional sleeves are available for multiple reasons including replacement of lost caps or sleeves, making an additional hole for a pole to sit in when an opening is formed, and reinstallation of fence in a new pool deck. The dimensions of the sleeves are 1 and 1/4 in outside diameter (fits in a hole that is drill 1 and 1/4 inches) and 1 inch inside diameter (poles with a base diameter of 1 inch fit in this sleeve).