reel for developing 4X5 & 9x12 large format film via the taco method For Paterson PTP 115 2 reel tank 3d printed so might showglue and sanding traces Slides into the center column, Bend film on LONG SIDE, emulsion side facing IN to not scratch it, make sure film is all the way to the bottom or you'll risk beding it with the funnel/lid. practice in the light with scrap film should need just 600ml as 1 x 35mm film = 4 sheets of 4x5 No tank no center column is included, just the reel if you're interested i have lots of film bw, color, slide in 35mm, 120 roll and 4x5 large format Canon Yashica Fuji kodak leica mamiya olympus