Features: brand new and high quality Explore the wonders of science through a hands-on science experiment. This kids experiment set will satisfy you little budding scientists' curiosity, open their horizon, find a brand new world and have great fun in spare for time. A sense of accomplishment inspires children's thinking and lays a solid foundation for their future. A great DIY Toy kit for kids to understand basic chemistry knowledge. Made of healthy abs material, eco-friendly, non-toxic, smooth without burrs and durable for long-lasting use. Package Includes: 4 Package(A/B/C/D Optional) Package A:38 Pieces Experients Package B:168 Pieces Experients Package C:268 Pieces Experients Package D:350 Pieces Experients Specifications: Material:ABS note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. for Always wash your hands before and after the experiment to ensure that your hands are clean. All experimental materials are for experiments only, and parents are optimistic about children to avoid accidental ingestion or other uses. Properly dispose of the residue and waste liquid after the test to prevent chemicals from polluting the home environment.