Here is a way to increase surface details on your Gunpla kits! Gunpla Builders Parts HD are customizing parts with a high level of details built in. By attaching these panels to your mobile suits you can create additional details quickly and easily. There are six different style panels, A-F, in three sizes (small, medium, and large). There are four of each combination for a total of 72 panels. Molded in gray. Package contents: runner x 2 and instructions.