6 DC core vibration motors: rated voltage: DC 3V (voltage range 1-6V), rated speed: 16000 RPM (speed range 8000-20000rpm). Waterproof vibration motor size: 7 x 25 mm. Small waterproof and quiet motor: The shell is made of high-quality sealed stainless steel. All moving components are enclosed within the shell. Wires are secured with epoxy resin to prevent liquid ingress, offering high waterproof performance, corrosion resistance, strong vibration, and low noise operation. Solid running hollow motor structure: stable performance, fast start and stop response, high output torque, high-speed capability, and efficient energy conversion. Applications for vibration motor: Suitable for DIY projects such as bristle bots, experimental robots, classroom science projects, and various electronic vibrating devices like massage tools and electric toothbrushes. Vibration motor warning: Please read the motor instructions carefully and use it properly. Contains small parts; not suitable for children—risk of accidental ingestion. Color: Silver Material: Aluminum alloy Package Contents: 1 set * vibration motor Note: Only the items listed above are included. Other products are not included. Note: Lighting effects and display settings may cause slight color differences between the image and the actual item. Measurement allows an error of +/- 1-3 cm.