Features: 3D printed mechanical dice are more than just toys, they can also be used as educational tools to help children learn math and geometry. In addition, it can also give children a deeper understanding of 3D printing technology and stimulate their interest in technology. High-quality materials: These 3D printed mechanical dice toys are made of high-quality materials, which makes them more durable than traditional toys and can be used for a long time. Specifications: Color:Army green/Black/Gray/Red/White/Yellow Package Include:1Piece Note: 1.Please allow 0.1-0.3cm differences due to manual measurement, thanks. 2.Please understand because of the light irradiation or computer display difference, so I can't guarantee photos and real color is the same.