Wooster Brush - Paint Roller Frames & Accessories; Product Type: Mini Roller Frame; For Use With: 4″ or 6″ Mini-Koter Mini-Rollers; Frame Material: Steel; Handle Material: Plastic - 96702840 - MSC Industrial Supply
Project Source Paint roller frame 9-in Metal Standard Paint Roller Frame in the Paint Roller Frames department at Lowes.com
Wholesale Paint Roller Frames - 4", Black Handle | DollarDays
Premier 3" Roller Frame - Aboff's
Amazon.com: Paint Roller Kit with Extension Pole, 9 Inch & 4 Inch Paint Roller Covers Brush Set, Roller Frames, Paint Tray Liner, Paint Brush Set - Pro Grade Paint Supplies for House