J-head Cooling Fan Holder Stand Aluminum Replacement Part Repair Accessory For E3D V6 3D Printer Before you buy it, please make sure you know how to use it, thanks. Product features: Material:Aluminum Screw hole distance:24mm Compatible:For E3D V6 3D Printer Package included: 1x holder Note: Only one holder included,the J-head and cooling fan are not included.