Quality: 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 lights into Christmas lights and decorations. 9 pieces of gel light filters included, sufficient for use. Size: 11.7 x 8.3 inches / 29.7 x 21 cm (L x W). Note: Do not leave the product on a light that is turned on, as it may melt. Combined Use & Creative 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 assist children with reading focus and eye movement control. Two-Sided Protective Film: Protective films are applied on both sides of the gel filters for scratch protection. Easy to remove before use. Color: Red Material: Plastic Package Contents: 9 x Gel Light Filters Only the above package content is included; other products are not included. Note: Light reflection and differences in display screens may cause slight variations in color compared to the actual item. Measurement allows an error of +/- 1-3 cm.