Gunpla Builders Parts HD are official Gunpla modeling parts that have a high level of detail. This set has clear effect parts for 1/144 mobile suits. There are 2 types of beam sabers, 4 total, and 2 types of vernier effects, 4 total. The beam effects fit into standard size beam sabers and some guns where they can be used as shooting parts. The vernier effects are compatible with the Builders Parts HD MS 1/144 Vernier 01 set. Package contents: 2 clear runners and assembly instructions.