Etched in 12 thou brass this useful etch consists of 24 coupling hooks and associated rectangular wagon pockets. Hooks are arranged so they can easily be folded to form a double thickness, soldered together and filed for a prototypically thick hook; alternatively they can be fitted through the pockets singularly.  The hooks are based on prototype drawings and feature a generous 'mouth' capable of accepting quite thick coupling links.  A hole for the link is etched to accept 0.7mm links.