Please see pics they are to show these are genuine Scalextric axle bearings,the same used in the factory for your cars. To stiffen up the back suspension and reduce play in the gearing back to factory clearances!These bearings have not changed since the 1960's except the addition of a collar to prevent splitting! Only the part numbers have change so will fit all Scalextric rear axles. You will receive 2x20 brand new current stock see new packet header NOT NOS!