Item Type: DIY Boat Set Material: Plastic Battery: 2 x 1.5V AA batteries (excluded) Package List 1 x Plastic Boat 1 x Motor 1 x Propeller 1 x Motor Stand 1 x Screwdriver 4 x Screws 2 x Plastic Nails 1 x Battery Holder 1Intellectual Development: The DIY boat kit encourages intellectual development through hands on learning, allowing kids to develop their problem solving skills and enhance their creativity. 2Cognitive Skills: As a hands on toy, the DIY boat kit trains and stimulates cognitive skills, facilitating the development of a range of mental abilities through the fun of assembling, painting, and decorating the boat. 3Material: Made of premium, environment friendly plastic, the DIY boat kit is sturdy and durable enough to withstand rough play, while also being safe for kids to use. 4Interest Cultivation: The DIY boat kit nurtures and promotes interest in the practical application of science, technology, engineering, and mathematics. 5Multi Functional: As both a toy and an educational tool, the DIY boat kit can provide kids with endless hours of entertainment, while also stimulating their knowledge and creativity.