. How to use: 1.Attach Gel-Band to Flash Pull the gel-band around your flash for head. 2.Insert First Tab Pull one tab of the Rogue Gel through the band on the side of the flash for head. 3.Insert Second Tab Pull the other tab through the band on the opposite side of the flash for head. Features: Using 20 different colors color film, offer 20 different color temperatures,create different light colors effects; 20 kinds of color film with high light transmission material, color temperature is stable, low loss, rugged, lightweight, versatile; Using paste-type magic,which applying to most top flash,carrying bags of colored tablets. Spirit Level only, other accessories demo in the picture is not included Specification: Material: Plastic Size: Approx. 60x70mm/2.36x2.76'' Color: As the pictures shown(One each of 20 different colors) Quantity: 1 Set Note: 1.Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 20 x Flash Color Gels (One each of 20 different colors, without retail package) 1 x Gel-band