BRITE MARK® 40 Threaded Cap Barrel Permanent Paint Marker, Valve Action, Red, Medium ORS NASCO automated spin weld attachment process for automated spin weld attachment process for fast and secure fastening Designed for light and delicate applications in dry environments that require high levels of dexterity Offers comfortable and exact handling of small objects General purpose felt tip paint markers that write on virtually any surface Quick drying or losing opacity Valve action mechanism prevents paint in barrel from drying when cap is left off Bullet tips are replaceable to assure complete use of paint in each marker Heavy duty aluminum body with large paint capacity