LED lens Size: really 13mm diameter Lens Angle: 15, 30, 45, 60, 90, 100 degree Quantity:10pcs Optical Transmittance: 93% LED Lens Meterial: Acrylic Package include:10pcs LED Lens Warm Tip : Please be reminded that due lighting effects, monitor's brightness/contrast settings etc, there could be some slight differences in the colour tone of the website's photo and the actual item. Item Measure by hand, it could be 1cm diferent,your kind understanding will be much appreciated.