Precautions: Model: Fruit battery Pay attention to distinguish between positive and negative: In the experiment, the more active metal zinc undergoes oxidation reaction, so the
Shell material: Plastic Specification: 0.5 mm Main use: office, stationery model see the description The pen body; 14.5 cm Name: : 12 constellation neutral
Overview: Full-Featured Multi-Touch Pad X Structure Design Compact Design with Aluminum Steel Cover Long-Distance Support 12 Month Warranty Status Display LED 80 Keys