Item Type: Electric wooden gliding aircraft DIY model assembly Material: Composite wood Application: Handmade, educational teaching Paint Material: The original wood without paint Battery: 1.5V 2 x AAA ( without batteries shipped )1[Learning Basic Building] Electric wooden gliders can be used to build electric twin gliders to help children build a strong basic in science, technology, engineering and math at an early age 2[Easy Self Assembly] Are you still worried about the wooden toy set is difficult to assemble, no tools or glue, just the normal assembly process can be easily completed 3[Support STEM Education] This puzzle toy set aims at improving children's practical skills, problem solving skills, inspiring children to to love science as well as build your child's self confidence 4[Safe and Fun] Our wooden aircraft toys are cut by superb laser technology, you don't have to worry about the parts of the plane hurting your child during the assembly process. At the same time, you can also enjoy the fun of DIY and parent child interaction 5[Appropriate People] Our aircraft toys are made of laboratory tested wood and are suitable for girls or boys ages 3 and up, and are great as gifts for birthdays, children's days, Christmas, summer camp activities, or school practices. If you have a high attention to detail and educational practices, then be sure to make this science experiment kit a gift for science enthusiast or your child. 2 x Block Board1 x Battery Box1 x 20 Iron Shaft1 x 40 Iron Shaft1 x Screwdriver1 x Screw Kit (15 x Screws, 2 x Bushings)1 x Propeller3 x Rubber Ring3 x Pulley1 x Motor