276 learning building kits - including reversible electric drills (2 AA batteries are required, not included), interchangeable drills, large plastic nuts and bolts, screwdrivers, screws, wrenches, instructions with 2D 3D patterns, and portable design suitcases. The large capacity storage box can be used to store all small items after playing, which is convenient to carry! Stimulate children's brains - This product improves children's participation in science, technology, engineering and mathematics by giving them this interesting toy, and helps them maintain relevance in a world proficient in science and technology. The colorful accessories can continuously stimulate children's exploration and design in the game, so as to cultivate their creativity and imagination. In practice, screwdrivers and toy drills can exercise children's hands-on ability and hand eye coordination ability. High quality safety materials - your child's safety is crucial to us. The building kit is made of ABS plastic and thoroughly tested independently in a third-party laboratory. It is non-toxic, BPA free and tasteless. All corners are round, and the drill rotates slowly and steadily, so children can play safely. It is durable and hard to break. Suitable for 3 4 5 6 7 8 9 10 years old children. Children's favorite gift - do you know what toys your children like best? Colorful, creative, DIY, interesting, etc. Electric drill educational toys are the best choice. You just found the building block that suits them best. Surprise your children or give their friends the most educational party gift. It is also the best gift for children on birthdays, holidays or occasions. Stimulate their creativity and let them release their imagination.