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 mute motor: The shell material is made of high -quality sealing stainless steel. All motion components are protected in the shell. The wires are fixed with epoxy resin to prevent liquid invasion, high waterproof, corrosion resistance, strong vibration, low noise, low noise Struly running hollow motor structure: stable performance, fast start and braking, high output torque, high -speed, high -energy conversion performance The purpose of vibration motor: DIY handmade projects, such as bristles, experimental robots, classroom experimental projects, etc.Various electronic vibration equipment, such as: vibration massage inst ents, electric toothbrushes, etc. Vibration motor warning: Please read the instructions of the motor carefully and use it in the correct way; the parts are small to prevent children from accidentally eating color: Silver Material: Aluminum alloy Package Contents: 1 set * vibration motor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 57 hours Hope you have a pleasant shopping experience!