These oversized blocks are approximately 7 1/4" from top to bottom, dimensions of the transition piece (top) are height 4" and width/depth 3 1/4". Purchase price is for 5 inside BLOCKS and 1 middle transition totaling 6 pieces! These have fabricated to use with moulding up to 5 1/4", they are much different than the standard home depot block (for $11) in that i've used a colonial 4 1/4" moulding in the tear drop for added detail. Since this was a special listing for a customer the quantity and specifications can be changed and the price re-adjusted to suit your needs.These can also be fabricated with standard shaped moulding for any size transition instead of the colonial shape! e-mail me with quantity of each needed and I will create a listing for you.