12" longAll steel or iron components (except for the safety cap).(2) Heavy Duty Springs for adjustable tension.3/8" diameter shaft and shaft collar.(2) mounting screws included.Supplied with components shown. Fastens securely to wall or work bench - won't tip over!! This model is for spools with 3/8" hole. For spools with hole over 3/8" - visit our store and consider LS-2B line spooler. No plastic parts .No rubber parts. No aluminum parts.No suction cup.No flimsy springs. (spools of line NOT included)