👍 MAGNETIC: 280mm x 140mm magnetic fan filter mesh for keeping and protecting your computer and electronics parts clean,no need screws ,easy and convenient installation. | 👍 PVC FILTER: PVC fan dust filter cover grills, reduce the fan and parts cleaning time,prolong its'working life,even if filter dirty, very easy cleaning and replacement. | 👍 SUPERIOR MATERIAL: With professional line, it is made of PVC plastic, durable, flexible, easy cleaning. | 👍 SPECIAL DESIGN: Dust filter fan filter has ultra fine holes, protect your computer from overheating and minimize the noise. | 👍 PACK INCLUDED: 4 x Magnetic dust filter ,if any other questions, please feel free to contact us to get the prompt and detailed reply.