Ball bearings, blue rubber sealed (5x11x4mm) (2) Use SKF stock and hop-up replacement parts to get the most out of your SKF RTR vehicles. This product is made from high quality materials and designed for long-lasting performance. This is replacement hardware for use on SKF vehicles; consult your user's manual for exact parts listings.
SKF has grown to become the number-1 selling name in RTR nitro and electric models for the last 4 years running. No one has done more than SKF to advance the RTR category with innovative thinking and fun designs that make it easy for anyone to get started in the great R/C hobby. SKF, truly the fastest name in Radio Control.