These Meade optical glass color filters put observations of the Moon and planets into a whole new light, boosting image contrast and resolution while reducing glare of the full or near-full moon. The #3200 Color Filter Set includes the all-important red, yellow, blue and neutral density filters for improving performance during common observations. Each filter threads into the barrels of all Meade MA, PL and WA 1.25" eyepieces and comes packed in a separate plastic case for secure short and long term storage.