Hoya 2" (48mm) colored filters. Blue, Green, Red, and a Mars orange filter. I never even used the red, blue, or green ones, and the orange and Neutral Density #2 were used little. I did like the Neutral Density one, worked well on the moon and planets. $15 each shipped, or all 5 for $54 shipped CONUS. I would also work a trade with a 1.25" MV1 or similar type filter, or a Lumicon filter slide (just need the extra slides). Thanks!