About the Product: Easy to remove block type for easy testing of electronic circuits. No tools are included. Easily learn about 120 different mechanisms including propellers, flying, listening to music and how the radio works. Includes: 45 pieces There are 120 types of experiments. All 120 Japanese translations are available only by buyers. (We include a flyer that is obtained. Manual: English manual in all colors is included, but it comes with a Japanese translation download service that translates to 120 different experiments. Recommended for ages 8 and up. Warranty: Only within 1 year of purchase, if the parts are lost or damaged, we will send you parts free of charge.