パターソン プラスチック現像トレー - 12x16インチ紙用（3枚セット・各色1枚）PTP336

The plastic is properly rigid—no flexing or bowing when I slosh chemicals around—and those three distinct colors mean I never mix up stop and fixer mid-print. These trays will outlast my darkroom hobby, I can already tell.

The color coding makes it dead simple to keep developer, stop, and fixer straight under the dim red safelight. These trays feel tough enough to last years, and the 12x16 size is perfect for my biggest fiber prints.

Used these for my first 12x16 printing session and the size was spot on, no curling over the edges. The three colors make it easy to keep developer, stop, and fixer straight even in dim safelight. Rinsed clean with just warm water, no staining.