Image Item No. Description  80543  Arch 1 x 4 x 3 Catalog: Parts: Arch  3307  Arch 1 x 6 x 2 - Thick Top with Reinforced Underside Catalog: Parts: Arch  30257  Arch 1 x 6 x 6 Catalog: Parts: Arch  2145  Arch 2 x 6 x 5 Ornamented Catalog: Parts: Arch