What is this?V6 fan cover is a useful accessory for radiator cooling fan. Cooling fan cover bracket, is mainly used for 3D printerWhat will I get?Cooling Fan Cover, is in size of : 22mm/0.87-inch dia, 2.5mm/0.1-inch mounting hole dia, 24mm/0.94-inch mounting hole center distance, 30mm x 22mm/1.18-inch x 0.87-inch(W*L)Is there any advantages of the product?Easy to install and operate, is a good replacement; Small size and lightweight; Durable and long service lifeHow to use it?Steps of installation: 1. Select fan cover of appropriate size; 2. Remove the fan cover to be replaced; 3. InstallationWhat should I notice?Please select the appropriate size of fan cover , especially the diameter, mounting hole diameter and mounting hole center distance.