Wanna buy a practicalwind cup? Here comes ourwind cupfor you to choose. Simple structure design helps make it convenient to use. Made of aluminium alloymaterial, durable and lasting for you to use.Features- Color: Black- Material:Aluminium alloy- Size: 17.00X17.00X5.00cm/6.68X6.68X1.97in-Well-made of premium and sturdy materials, safe and practical for lasting using time.-Small rotational resistance, accurate measurement, small size, light weight, easy to carry and assemble.-Flexible fitting is more sensitive in the wind, convenient and practicalAnemometer Cup.-The replacement wind sensor enjoying 360 degree wind speed measurement and low consumption.-Safe to use. Boasting wonderful performance and strong stability. You can buy and use with confidence.Packing list1 x Replacement 3-cup Sensor(No Base)