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
 





 
                     
                            
                         
                     
                     
             
             
                 
             
             
             
            