Neewer Universal Photography Speedlite Flash 1.85" x 3.03"/47 x 77 mm 35PCS Square Full Color Balance Gel Filter Kit with Magic Strap for Canon Nikon Sony Pentax Olympus and Other Flashes 35 pieces color gel filters for lighting effects and color correction. Includes the largest selection of popular colors for controlling light from your strobes. 35 color filters made of high transparent material,the color temperature is stable and the loss is small. Use combinations of these filters to create different effects, such as cool effects, enhancing skin tone in portraits, color correcting or matching ambient, simulating different kinds of light, cheating white balance etc. Can be fastened by magic strap, easy to use.