The R-9 flash canister was a flash canister used in the training of Jedi apprentices. This explosive device would cause dozens of tiny shells within it to burst out and detonate in a flash of bright light, temporarily blinding those within the 4-meter blast radius.
- Star Wars: Power of the Jedi
- The Official Star Wars Fact File 102 (JED12, Jedi Field Equipment)
- Jedi Academy Training Manual