Item Type: Steam Boat Science Kit Assembly Size: Approx. 140 x 70mm / 5.5 x 2.8in Applicable Age: Over 5 years old Ability Development: Intellectual development Experiment Type: Department of Physics Features: Durable, DIY assembly, educational toys Weight: Approx. 130 g / 4.6 oz Package List 4 x Board 4 x Candle 4 x Bottle Cap 4 x Bottle 4 x Straw 4 x Heat Shrink Tube 4 x Steam Boat 1. Please allow 0& 8209;2 cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 1Children can learn some scientific knowledge while playing, expand scientific knowledge and promote children's intellectual development. 2The assembly process of this steamship toy can cultivate children's operational skills and logical theory. 3A great DIY educational toy, suitable for children and students to gain a sense of accomplishment and learning knowledge in the entertainment process. 4Excellent hand-eye coordination and concentration toys can help them think, increase creativity and interest in learning. 5DIY hot steam-powered speedboat model toys for children to have hands-on experience.