0.5 ml (x 4) single-use tubes. Krazy Glue Single-Use Tube is ideal for office, home and craft projects. Each tube contains enough glue for one application. Twist the self-piercing cap to open, apply Krazy Glue and throw away. Convenient storage case provides organization for kitchen drawers and workshops and is great for on-the-go. Tape is suitable for use on plastic, metal, wood, rubber, glass and more.