"Medium Size Light Dimming Sheet 3.5" x 8 3/4" you can cut to your desired size. Dims 80%-90% of Light and works on touch screens Search for “LightDims Get all 6 Kinds” to get all our products at once for 45% off the retail price. LightDims Customizable Original strength. You asked and we delivered. Everyone loves LightDims Original Strength but some people need something larger for digital clocks. Or some people need to dim touch screen devices like smart phones and small tablet pc's. LightDims CUSTOMIZABLE Edition is made from the same material as our award winning Original Strength product, which means they also dim 50-80% of light. This product is approximately the size of a number 10 envelope but can be cut to any size or shape. This product also will NOT leave any sticky residue on your electronics if you decide to remove it. Best of all they work on touch screens! The problem is that your electronics LED lights are too bright. Lightdims are specially designed, removable tiny covers that act like sunglasses for irritating LED's on your electronics. Lightdims dim unwanted LED glare or flare when ambient light in your room is turned down or off. LightDims are easy to use by simply peeling off a Dim LED cover and applying it to your electronics, keeping them functional while dimming annoying LED's to a comfortable level. Lightdims simple yet elegant design does not draw unwanted attention to itself allowing your electronics to remain as clean and professional looking as the day you bought it. A single Light Dim is a perfect LED blocker or dimmer. LightDims are easy to use, just peel and stick. It does not matter how old you are, we are all surrounded by electronics and their tiny LED lights. Have you ever wanted that LED light to dim? Do you have trouble sleeping? Do you wear glasses? If you have had eye surgery like Lasik, halos can be annoying at the very least or painful, making the eyes sensitive to light.