PBL Color Correction Gels 33"x34", Primary Lighting Filter Gel Pack of 5, Includes Diffusion Gel Steve Kaeser Photogrpahic Lighting & Accessories 4...Color Gels, Red, Yellow, Blue, Green, 33" x 40" 1...Diffuser Size 33"x40" 4...Clips to attach gels to you softboxes or Barndoors Gels can be cut down to fit barndoors or softboxes, Using scissors. These gels are not intended to put over a camera lens. All gel material is made from acetate sheets. It is impossiable to keep them from scratching or bending, once someone picks them up. The scrates do not effect your lighting.