Quality Material: These gel filters are made of high light transmission plastic and can be used as flash filters. Lightweight, high toughness, stable color temperature, and low loss. Perfect for placing over outdoor lights or transforming regular LED garage flood lights into Christmas lights or Halloween decorations. Quantity: 9 pieces of gel light filters in total, sufficient for various uses. Size: 11.7 x 8.3 inches / 29.7 x 21 cm (L x W). Note: Do not leave the product close to a light source that is turned on, as it may melt. Combined Use & Create Amazing Effects: These gel filters can be combined to create different effects such as cool tones or color correction. Ideal for additive and subtractive color, color mixing, color transmission, absorption, and filtering of different wavelengths of light. Wide Applications: The lighting gel filter is suitable for photo studio strobe lights, flash lights, LED lights, film, video, theater, party, and DJ lighting. Can also be used for memory albums and other art projects. May help improve visual clarity and eye movement control. Two-sided Protective Film: Protective films are applied on both sides of the gel filters and are easy to peel off before use. Helps prevent scratches during storage. Color: Blue Material: Plastic Package Contents: 9 x Gel Light Filters Note: Light reflection and differences in display screens may cause slight variations in the color of the item shown. Measurement allows an error of +/- 1-3 cm.