5 x 11 x 4 Sealed Ball Bearings, each bearing has 2 Sealed to protect the bearing from dust or any possible contamination, also bearings are pre-lubricated with grease. Lubrication: Self Lubricated (Grease) Equivalent to Tamiya 1150 Ball Bearings Packing: 10 bearings in One plastic tube FITS: MRC THUNDER KING LAGER REAR WHEEL FITS: THUNDER KING DESERT THUNDER BAHA KING FITS: TAMIYA ACURA & JAGUAR(COMPLETE) FITS: TAMIYA ACURA & JAGUAR(OPTIONAL) FITS: TAMIYA KING CAB-BEETLE-FROG-SUPERSHOT-HILUX FITS: TAMIYA MIDNIGHT PUMPKIN VANESSA LUNCHBOX FITS: TAMIYA MUDBLASTER-MONSTER BEETLE BLACKFOOT FITS: TAMIYA NISSAN SKYLINE PRERUNNER FITS: TAMIYA ROUGH RIDER SUBARU BRAT BEAR HAWK FITS: TAMIYA SEMI TRAILER FOR KING HAULER FITS: TAMIYA SONIC FIGHTERSTRIKER-FALCON FITS: TAMIYA WILLIAMS HONDA LOTUS HON