The kit includes a functional wind vane an anemometer a thermometer and a rain gauge for measuring local weather conditions. Use the kit and a recycled soda bottle to create a terrarium to study the greenhouse effect on plants. Manufacturered by 4M. Fully assembled the weather station measures 8.5-inches by 4.75-inches making it ideal for sitting on a desktop or bookshelf. Recommended for ages 8 years and up. This multi-function weather kit contains a full set of basic tools to observe and record weather conditions around the home. Challenge your child's imagination with 4M toys and kits. 4M educational toys cover a wide range of educational subjects and include science kits arts and crafts kits robotics kits and more. 4M offers a wide range of toys and kits to let you build a clock crochet a placemat or turn your room into a planetarium--all in the name of making learning fun. Learn about your climate while tracking weather changes and conducting experiments on the greenhouse effect Completed station measures 8.5"X4.75"