Chalk Holder Combo Pack - Commando Anodized Pro Series Handles (1each Clear, Gold & Blue Anodized) with One Piece White Standard 3/8" School Chalk in Each Holder - SAVE 5% and Receive FREE Fluorescent HighLighter Professional quality chalk holders for school, office, meeting room and industrial use Pen size 1/2 Built-in chuck positions and firmly holds standard 3/8 All machined parts are plated or made of materials to help prevent rust & corrosion Limited Lifetime Warranty on USA Made handle - see warranty details