Neewer Photographic 2.5x5.5 inches 20-piece Speedlite Flash Color Gel Lighting Filter Kit, Fits Canon Nikon Nissin Olympus Panasonic Pentax Konica Metz Minolta Neewer Flash and Other Flash Speedlight The kit includes 20 filters: 14 color effects, 5 color correction, 1 diffusion Tabbed design attaches quickly to any shoe-mount flash Filter size: flash head area, 2.5" x 2.5" (63mm x 63mm), total length with tabs, 6" (152mm) The innovative tabbed design of the gels means you can quickly attach them to dozens of different speedlight brands, including: Canon, Konica, Metz, Minolta, Nikon, Nissin, Olympus, Panasonic, Pentax, Quantum, Sigma, Sony, Vivitar, Neewer and more.