Aluminum spacer set with 2 mm inner diameter, designed for model building and scale models. - 2 mm inner diameter aluminum spacer set - Available in six vibrant colors - Four pieces of each size included per color - Includes thicknesses: 1.5 mm, 3 mm, 6 mm, 6.7 mm, 12 mm - Ideal for hobbyists, model kits, and precision assemblies