Magnetically operated knuckle couplers with coil springs and patent pending spring retainers. Fits most HO-scale locomotives and rolling stock with built-in draft gear boxes (coupler pockets). 12 units, each unit with one pair of couplers. Units are joined together by perforation. Integrally-molded springs. E-Z Mate eliminates the problems and expenses associated with separate coil springs. These couplers operate with a standard metal "glad hand" and under-track magnet. Compatible with all magnetically operated knuckle couplers. Installation instructions are provided on each individual package. Packages are individually bar-coded for ease of sale
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