This is 2 Pairs of Kadee #58 Magne-Matic Couplers. / / FEATURES: Precision engineered. / Scale metal coupler with a smaller head which is more to scale / and is patterned after the type "E" couplers. / Insulated #232 Draft Gear Box and Lid with side and center screw / holes for mounting. / Metal medium (19/64") centerset shank, / Simple drop-in design to accommodate manufacturers' draft gear / boxes and cast-on coupler pockets. / Designed for standard height mounting platforms. / Interchangeable with #5 (KADU0005), #28 (KADU0028) & #38 (KADU0038). / Compatible with Kadee HO and Hon3 couplers. / Bronze centering springs. / Side and center screw mounting holes. / The most functional & reliable knuckle couplers on the market! / Very detailed instructions. / Made in the USA. / INCLUDES: (4) #58 Couplers / (4) #5 Draft Gear Boxes & Covers / (4) #5 Centering Springs / (2) #625 Knuckle Springs / / REQUIRES: Assembly / Coupler Pliers (KADU0237) / Hobby File / Grease-em (KADU0231) / / SPECS: Scale: HO 1:87 / kr9/8/06