These are 5 x 11 x 4mm Ball Bearings from Traxxas.
FEATURES:
Ball bearings reduce friction and last longer than bushings.
Chrome steel construction.
Used to upgrade from bushings.
INCLUDES:
Two 5 x 11mm bearings
SPECS:
Inner Diameter: 5mm
Outer Diameter: 11mm
Thickness: 4mm
Fits:
1/10 E-Revo / E-Revo Brushless / 1/10 E-Maxx / E-Maxx Brushless / Jato 3.3 / 4-Tec / Nitro Slash / Nitro Sport / Nitro Stampede / Revo / T-Maxx / Slayer Pro 4x4 / Nitro Rustler / T-Maxx Classic