Ornamental Mouldings Hard Large Inside Block Moulding 7.75" H X 7.47" W X 4.19" D Crown 7.75 H X 7.47 W X 0.1453 D In In Brown | Ceiling | Wayfair

Waddell ICTB-31 Inside Crown Trim Block

Ornamental Mouldings Hard Small Inside Connector Block Moulding 2.02" H X 4.13" W X 2.38" D Crown 2.02 H X 4.13 W X 0.0937 D In In Brown | Wayfair

A La Maison Ceilings Crown Molding Inside Corner Block - Small 10.25 H X 2.5 W X 22.0 D In Plain White | Ceilingcorners | Wayfair

A La Maison Ceilings Crown Molding Inside Corner Block - Medium 11.25 H X 3.5 W X 22.0 D In Plain White | Ceilingcorners | Wayfair

Crown Moulding 15 Inside Corner Blocks Made For 3 5/8" Crown + 3