The Detail Cover Type A set has multiple parts made to cover the unused 3mm connection points on models from Frame Arms, Hexa Gear, and more. Several standard designs are available, including the popular minus mold. All detail covers come with a 3mm joint on the back that can be attached to turn those unused 3mm connection points into details. By combining these with the included 3mm attachment universal spacer joint, modellers can further expand how this product is utilized. In addition to long and short joints, there are two types of details on the 3mm joints to fill unused 3mm connection points. Various other spacer parts are also included, such as concave-convex, pipe, and convex-convex types are included, allowing users to customize as they see fit. Runners: Universal Spacer Joints [A Runner] x1, Detail Covers [B Runner] x2, Detail Covers [C Runner] x2.