The DIY Science Handmade Experiment Set is a perfect blend of fun and education. This hands-on experience not only develops their practical skills but also encourages critical thinking and problem-solving. nature of this kit promotes family bonding and strengthens the parent-child relationship. Features -Color:Beige -Material:Iron, wood -Size:13.00X7.00X5.50cm/5.11X2.75X2.16in(telegraph transmitter) -Size:6.50X5.50X4.50cm/2.55X2.16X1.77in(telegraph receiver) - The assembly process for this telegraph model is simple and easy, making it accessible for users of all skill levels. - Unleashes curiosity and imagination towards science: stimulates curiosity and imagination in the field of science. - Enhances practical skills and problem-solving abilities: improves practical skills and the ability to solve problems effectively. - Fosters interactive experience for children and parents: encourages an interactive experience for both children and parents. - Promotes effective learning through entertainment: encourages effective learning through entertaining activities. Package list: 1 x telegraph transmitter model 1 x telegraph receiver model