and high quality, Made of high-quality materials, exquisite workmanship, very and long service life. It can choose from many power sources,which is convenient for outdoor or mobile use. Can be used directly after connecting to power supply,and there is no need to prepare parts. small in size and light in weight, which is very convenient to carry around. The vertical height should not exceed 2m. When in use, stop using it every 30 minutes and restart it after five minutes. Inner diameter of transparent tube: 8mm Inner diameter of translucent tube: 6mm Input:USB 5V2A Pumping speed: 4L/min Colour:White & Black Material:plastic Package Contents: 1 * USB Mini Water Pump 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.