Description: Using the magnetic suction light source design and separate switch, you can adjust the angle of light at will to meet your needs. Surely, this product is easy enough for junior or high school students. It has features about to enhance the knowledge learned from physics classes. It made of exceptional electronic materials. It is made from electronic component and plastic, is durable to use. The length of the product is 10.5 cm, the width is 7 cm. This product is suitable for education. Item Name: Physical Equipment Material: Plastic,Electronic Component Features: Practical Ability, Sturdy, Stable Current Battery: 2 x AAA Batteries (Not Included) Size Details: 10.5cm x 7cm/4.13" x 2.76" (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 Set of Physical Equipment