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, 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 use. Size: 11.7 x 8.3 inches / 29.7 x 21 cm (L x W). Note: Do not leave the product close to a lit light source, 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. Suitable for additive and subtractive color, color mixing, color transmission, absorption, and filtering of different wavelengths of light. Wide Applications: The lighting gel filter is ideal for photo studio strobe flash, LED lights, film, video, theater, party, and DJ lighting. Can also be used for memory albums and other art projects. May help children reduce visual stress during reading, improve clarity, and support 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 Only the above package content is included; other products are not included. Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement allows an error of +/- 1-3 cm.