Rosco's large Ripple Gobo is often used in conjunction with a motorized gobo rotator to produce the effect of moving water. It can be used in sharp focus or defocused for a more diffuse effect, producing a dappled light field. Several gobos can be overlapped to increase the effect. The gobo is made of steel, is heat-resistant and is suitable for use in a variety of theatrical and special effect applications. This gobo is custom-fitted so you must specify what size you want when purchasing.