These are N Code 55 Insulated Rail Joiners by Atlas / / FEATURES: Used to replace metal rail joiners in order to / electrically insulate track sections. / Designed for use with N scale Code 55 track. / Transparent white plastic rail joiners. / / INCLUDES: (48) Rail Joiners / / SPECS: Scale: N (1:160) / Rail Hgt: Code 55 (.055"") / sdw 1/22/02 / ir/kh / updt kr1/3/06