The gel string allows a multitude of color choices to be projected as bold back-lighting, to accent gobo projection, or as a subtle cyclorama wash. Colors are easily and inexpensively changed from one production to the next. Apollo Gel is made from 3 mil polyester and available in 140 saturated colors. Desired colors are easily chosen and made into custom gel strings by Apollo or the designer, student or technician. Individual color frames can be replaced to offer additional customization while staying within the budget of the production. Clear Frame View Picture to see colors.