113 Pieces 3D Marble Run Set Construction Building Blocks STEM

Features: 113 pieces marble run set, easy to assemble, improve children #39;s hands-on ability, cultivate children #39;s spatial awareness. Made of environment-friendly ABS material, non-toxic, tasteless, durable and fall resistant. Fine workmanship, smooth surface, no injury to hands. Various combinations can help children improve their creativity and logical thinking ability, stimulate their spatial thinking and hand eye coordination. Color appearance and easy to attract children #39;s attention, the process of patching up can cultivate children #39;s patience. It can be used as a great gift for children. Parents can play with their children and let them grow up in happiness. Specifications: Material: ABS Number of Piece: 113 Package Size: 32 * 23 * 8cm/ 12.6 * 9.1 * 3.1in Package Weight: 590g/ 20.8oz Packing List: 113 * Building Block 1 * Instructions