This sprue includes two types of shaft couplers. It provides eight ribbed shaft couplers and ten flanged shaft couplers.
The sprue holds the parts into a single assembly for printing and can be cut away to free up the parts.
In 1:32 these parts are intended for 0.080" shaft material and in 1:24 these parts are intended for 0.100" shaft material.
These parts can be used in 1:48 scale.