Features 1、MAIN USE: This is a wooden brain teaser puzzle suitable for age 5+, suitable for educational DIY science building STEM projects 2、APPLICABLE SCENARIO: Kids STEM kit is ideal for excellent independent or collaborative group activities in a school classroom, makerspace, daycare, library, home, or office 3、KID FRIENDLY MATERIALS: 3D wooden puzzle model car kit is made from non toxic and laboratory tested safe wood 4、ACCURATE CUTTING: All wood parts of the model car kit are cut with exquisite laser technology, no incisive edges, with good feel, no odor 5、STIMULATE INTEREST: Homemade car, fun and vivid, little scientist experiment toys stimulate children curiosity Specification Item Type: 3D Wooden Puzzle Model Car Kit Material: Composite wood Suitable Age: Above 5 Years old Use: Handmade, educational teaching Finished Size: Approx. 13.6 x 6.3 x 8.2cm / 5.4 x 2.5 x 3.2in Battery: 2 x AA batteries(not included) Package List 2 x Puzzle Kit 1 x Battery Module 5 x Tire 1 x Double Sided Tape 1 x Motor 1 x White Glue 2 x Iron Shaft 1 x Gear 1 x Accessory 1 x User Manual