The circuit toy with spring clip design is suitable for teacher to teach student basic knowledge of electricity and improve kids circuit recognition ability, it is also with corresponding content with textbooks. Adopting the circuit toy with funny design, DIY function, physics experiment functions of circuit test or series and parallel circuits to promote kids hands-on ability and exploring ability, then you will get effective result. The toy is made of metal and plastic materials. There are different sizes. It is suitable for education, kids, experiment, etc. Item Name: Circuit Experiment Toy Material: Plastic,Metal Features: Educational, Spring Clip Design, DIY Function Specification: 1 Set of Simple Circuit Toys Size Details: Storage Box Size: 14cm x 8cm/5.51" x 3.15" (Approx.) Wire Length: 25cm/9.84" (Approx.) Battery Boxes Size: 8cm x 2cm/3.15" x 0.79" (Approx.) Single Pole Switch Size: 7.5cm x 4cm/2.95" x 1.57" (Approx.) Small Lamp Holder Size: 7.5cm x 4cm/2.95" x 1.57" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Storage Box 5 x Wires 2 x Light Bulbs 2 x Battery Boxes 1 x Single Pole Switch 2 x Small Lamp Holders