- Prevent mug theft - Stop your co-workers from using your mug without your permission!
- 16 oz. ceramic mug with a hole in front
- Useless without the owner's rubber plug
- A great gag gift for your co-workers and boss!
- Size: 4-1/2" x 3" x 3-1/2" (11 cm x 7.5 cm x 8.5 cm)