Quality Material: These gel filters are made of high light transmission plastic, can be used as a flash filter. Light weight, high toughness, stable color temperature, low loss. Perfect for placing over outdoor lights, or transforming regular LED garage flood lights to Christmas lights, Halloween decorations. Quantity: 18 pieces of gel light filters in total, enough for using. Size: 11.7 x 8.3inches / 29.7 x 21cm (L x W). Note: please do not leave the product close to the light which is on, or it will be melted. Combined to Use & Creat Amazing Effects: these gel filters can be combined to create different effects, such as, cool effects, color correcting. Or for color correction, involving additive and subtractive color, color mixing, color transmission, absorption and filtering of the different wavelengths of light. Wide Applications: The Lighting Gel Filter is pfrfect for photo studio strobe flash light LED lights, film, video, theater, party, and DJ lighting. Or used for memory albums scrapbooks and various other art projects.It can also help children reduce frustration in reading, improve clarity and eye movements control. Two-sided Protective Film: There are protective films on both sides of the correction gel light filters, easy to peel off. Please tear off the films before use. Don't worry about being scratched, easy to remove them. Colour:green Material:plastic Package Contents: 18 x Gel light filters