This fits your. Make sure this fits by entering your model number. WORKING PRINCIPLE: Use 4 convex lenses arranged in order on the same line to understand the light passing through different media. The phenomenon of refracting occurs at the interface. The convex lens is made from this principle and the combination of n-piece convex lens and concave lens can be used as a telescope. Bring on the questions of the world! Never stop asking questions and never stop learning! Great way to have little minds start thinking about their world. Perfect start for a little scientist. Very popular for budding astronomer. Package Dimensions: 10.31'x6.89'x1.57' [26.2cm*17.5cm*4cm] Minimum Age Recommended: 6-year-old.