Slowly reduce the time of children watching TV, playing games, playing computer games, and not let the child to indulge. Effective promote the interacton between parents and children. Let the children learn in the entertainment. Warning1: Be careful when using parts with sharp point or edges. Warning2: Keep away from children under 5 years old. Warning3: Don't mix old and new batteries; Don't mix alkaline, standard(acrbon-zinc)or rechargeable(nickel-cadmium) batteries. Operation precaution All assemblies are done together with an adult required .adult supervision required. Age: 5 years old (Seller advise) Batteries: 3 * 1.5V Batteries (Not included) Package Size: L*W*H=23*16*4 cm Accessories:Optical Fiber Tree, Press Swetch, Bidirectional LED, LED, Colorful LED, Lamp, Reed Switch, Magnet, Motor Shaft, Fan Blade, and more. Product Feature 1. Both boys and girls love to play with this circuit block toy and get them highly recognized. 2. Electronic building blocks are equipped with full color manual assembly, instruction manual, from the shallower to the deeper. 3. DIY circuit blocks have various functions, experience the scientific fun of electronic technology, inspire children to generate interest in the knowledge of the circuit. 4. Exquisite box packging. Package include Plastic snap-grid 19 * electrical components 1 * project manual
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