This DIY kit includes all the necessary materials and instructions for kids to assemble their own model. By manipulating the angles and observing the light passing through the instrument, children can learn about the concept of refraction and how it is used in navigation. This engaging toy promotes critical thinking, problem-solving skills, and scientific curiosity in . Features -Color:Beige -Material:Wood -Size:24.00X18.50X6.00cm/9.43X7.27X2.36in -Cultivate hands-on abilities: develop children's hands-on abilities and creativity through assembly and production. -Inspired by nautical instruments: the model is inspired by nautical measuring instruments. -Explore light optics: teach children about the principles of light refraction, stimulating their scientific curiosity. -Intellectual stimulation: enhance children's logical thinking and problem-solving skills through puzzle-solving and critical thinking. -Fine workmanship: this diy toy is made of safe and reliable wood material, and practical to use. Package list: 3 x set of DIY Sailor Assembly Kit