Chalk Holder - Commando Gold Anodized Handle with Standard School Chalk (See Item 152-1224 for Chalk Holder with Bonus Protective Storage Tube) Professional quality chalk holder 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