Fluorescent light filters are indispensable in life and at work.A key benefit is their ability to diminish the intense glare produced by overhead lights, leading to eye strain and exhaustion, particularly during prolonged reading or screen exposure. You can mount Fluorescent Light Covers at ceiling lights for easy, tool-free installation.Specifications:Quantity: 4 pcs/6pcsSize: 4 x 2 ft/120 x 60 cmMaterial: PolyesterNotes:1. Due to the different measuring tools, please allow slight errors on size.2. The color may exist a slight difference due to different screen displays.3. You can contact us if you have any questions.