Check the listing for details. CROWN MOLDING INSIDE CORNER BLOCKS FOR 4 1/2" CROWN (8 pack). Condition: New. Listed at 67.99 USD. blocks are approximately 7 3/4" from top to bottom, dimensions of the transition piece (top) are height 4" width 3 1/4". purchase price is for 8 BLOCKS. These have fabricated to use with moulding up to 5", they are much different than the standard home depot block (for $11) in that i've used a popular ALEXANDRIA 4 1/2" moulding in the tear drop for added detail. THIS MOLDING CAN BE PURCHASED IN MOST SUPPLY HOUSES INCLUDNG HOME DEPOT. IVE LISTED PHOTO SPECIFICATONS IN LISTING PHOTOS. these have also been primed with Zinsser 123 stain blocker and painted TWO COATS with Benjamin Moore super white semi-gloss paint! I also have bare pine if necessary. block is pictured with colonial 4 1/2" crown moulding. I also have the MIDDLE transition block ($14) which bridges two pieces of crown in lie of an ugly scarf joint as depicted in the latter photos. e-mail me with quantity of each needed and I will create a listing for you.