Features: Improve your model train setups with these 12 scale magnetic couplers, featuring general compatibility with major brands and tool installation for seamless freight car associations. engineered from permanent metal and plastic, these scale couplers integrate spring loaded mechanisms and ±0.5mm dimensional accuracy to secure, rust resistant coupling for model railroad layouts. Designed for model train enthusiasts, collectors, and hobbyists, these couplers simplify assembly for both beginners and experts upgrading scale freight car systems. Ideal for creating intricate miniature railroads displays, educational projects, or commercial exhibitions, offering execution in dynamic model train environments. Optimize your train modeling projects with these light, resistant couplers that balance authentic scale with robust functionality for endless creative configurations. Specifications: Component: metal, plastic Size:approx. As picture shown length 2cm/0.79in Properties: Black/Brown Applicable scenario: Train toy assembly Package Includes: Black train hook x12 note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.