This Paint Pro Plastic 6-inch Paint Tray with Grid accommodates up to 6-inch roller and frame sizes. Works well for paint trim pads/edgers/brushes.
Mini Roller Trays & Grids - Paint Supply
Mini Roller
Paint Tray Cover
Paint To It Tray
Premier Paint Roller - 6-1/2″ Roller Compatible Mini Paint Roller
Midstate Plastics, Corporation - Paint Sundries - Midstate
Paint Pan Liners
Paint Roller Cleaner
Rollers and Trays - Kelly-Moore Paints
Antifouling: Everything you need to know - Practical Boat Owner
Clear Paint Plastic
Paint Roller Pan