Slides into 12 or 20 gauge magazine tubes to quickly remove dents. Grooved to clear "tabs" on 1100 Special Field and 11-87 with new-style magazine spring A retainer. Will not work on Mossberg magazine tubes. Mfg: Brownells SPECS: 8 3/4" (22.2cm) long tool. Handle adds 11" (27.9cm). Steel.