Product Description Mellow NF Quality Cases NF-Crazy Silicone Socks For 3D Printer Hotend Temperature Protection For Ender 3 Pro Alfawise . Brand Name:MellowItem Type:Heated BlockModel Number:2NFCBSColor:Blue/BlackMaterial:High temperature resistant siliconeSilicone operating temperature:Not more than 300 degreesHeating block use temperature:Not more than 550 degrees |