Features: Crafted from premium melamine, these durability dominos withstand repeated play, offering a safe and long lasting alternative to traditional wooden sets for kids aged 3+ while enhancing logical thinking through creative stacking challenges. Featuring nontoxic color and a portable storage box, this dominos set combines visual stimulation with practical organization, encouraging color recognition and tidy habits during playtimes. Designed for preschoolers, kindergarteners, and families seeking educational entertainment, it supports developmental milestones in motor skills and cooperative learning through hands on building activities. Versatile for home playrooms, daycare centers, or outdoor gatherings, the light weight dominos tiles foster group interaction and imaginative scenarios from simple tower to complex chains reaction designs. Engineered with rounded edges and chip resistant surfaces, this STEM inspired toy transforms play into skill building adventures while simplifying cleanup with its auto contained storage solution. Specifications: Color:Two Choices Dimension:20.4×15×8.8cm/8.07×5.9×3.46in Component:Melamine Package Includes: 1Set Durability Melamine dominos note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.