Features: Flexible polymer temperature-resistant component, easy to load and unloads, and not easy to damage. Directly put the fan cover on the radiator, slightly pressed to complete the installation, no longer have to be careful and worry about cracking like the printed fan cover. The inner wall with card marks, can be better hold to the radiator, the printed fan cover with large error, may be too loose or too tight, difficult to install. Unique encircling design, tight contact with the radiator, to encloses the wind within the radiator, to prevent affecting the heating block heating. The funnel-shaped design of the fan opening strengthens the wind power of the fan and achieves a good heat dissipation effect. Specifications: Size: about 30x30mm/1.18x1.18in Product Name：for ender 3 V5 Radiator Fan Support Material: Polymer plastic Use: Extruder-specific radiator fan cover Product Color:Optional Product Description: for ender 3-V5 ( for 25mm diameter radiator) ； ( for 22.3mm diameter radiator) Optional Package Includes: 1PC Fan Support note: Due to problem of lighting effect there might be tolerances in product, please understand. Please allow 0-2mm error due to manual measurement.