If you need to balance the colour temperature output of your flashgun then this kit is the perfect way to acheive it these superior quality lee filter gels are pre cut and attach quickly and securely to the honl photo speed strap sold separately and can be used in conjunction with the honl snoots gobos and grids each sold separately the usable gel area is 25 x 4 and can be trimmed to fit individual strobes measure the surface area of the front of your strobe to check the fitthe hon