Valspar 1-1/2-in Reusable Polyester Angle Paint Brush (Sash Brush) in the Paint Brushes department at Lowes.com
Multi-Angle Paint Brush Extender - Paint Edger Tool for High Ceilings, Walls, Trim and Corner Painting Tool, Paint Roller Extension Pole Attachments for Cutting in Clean, Paint Pole Extension Device - Amazon.com
Paint Roller Paint Roller With Oil Removal Bin, Extended Handle, Right Angle Brush - Temu