Owens Corning R 15 Unfaced Fiberglass Insulation Batts, 3.5 in x 23 in x 93 in, 4 Bags Mailbox Accessory and matting products Product Length Item Weight:.625 and matting products Product Length (ft single sink vanity cabinet Finish Twilight Gray with metallic trim and hardware (gold or silver options depending on variant) Frame Material Solid wood Panel Material Moisture resistant MDF Drawer Construction Plywood drawer boxes with dovetail joints Hardware Soft close glides and hinges Storage 2 tilt down drawers Specification Details Insulation Type Fiberglass Faced Unfaced Unfaced Maximum R Value R 15 Thickness 3 Q: How many pieces are in a pack and what area does it cover