Gunpla Builders Parts HD are customizing parts with a high level of details built in. This set makes pipes that can connect to mobile suits, weapons, or anything else you want. The set has 4 flexible pipe cores, two large and two small, that the pipe sections go onto. There are 96 large pipe sections and 40 small ones, as well as 6 pipe ends and 2 pipe intermediate sections in both sizes. Parts are molded in dark gray. Package contents are runner x 3 and instructions.