Check the listing for details. Klein Tools CHLK00B Blue Chalk Line Capsules 4-Pack Mess-Free Refills 4.8oz. Color: Blue, Condition: New, Made in China. Listed at 16.99 USD. This listing is for a new, unopened pack of Klein Tools CHLK00B Blue Chalk Line Capsules. Designed for mess-free refills, these capsules are sealed and ready for use. Simply slide a capsule onto your Klein Tools chalk reel to puncture the seal and begin marking. The high-visibility blue chalk is suitable for a variety of surfaces including drywall, concrete, stone, wood, and plastic. This 4-pack contains four 1.2 oz (35 g) capsules, totaling 4.8 oz (136 g) of chalk. Compatible with Klein Tools Chalk Lines, Cat. No. CHLK50R, CHLK50B, and CHLK100 (chalk lines not included). The packaging is recyclable when empty. Enhance your marking precision with these convenient and durable chalk refills.