The Rosco range presently includes over 700 standard steel gobo designs from leading designers. The patterns are etched using a precise double-sided process on stainless steel. The result is durable, high quality patterns which will withstand the extreme heat at the gate of ellipsoidal spotlights. Select Gobo size A or B or M size - if you don't know the size select 'Custom' and write the name and model of your lighting fixture in the item message box.