Each block style transition has 3 sides. blocks are approximately 8" from top to bottom, dimensions of the transition piece (top above teardrop) are surface height 4” and have a surface depth of 3 1/4". The surface face is 6 1/2”. Purchase price is for 1 block style transition. These are made to bridge 2 pieces of crown in the middle if a room in lieu of an ugly scarf joint. These have also been primed and painted two coats with Benjamin Moore super white semi-gloss paint! if you need more or to combine with any other blocks please let me know and I will create a listing for you. I am a custom fabricator and can usually transition anything. please be wary of the seller whose specifications are smaller than mine as properly installed crown molding should show reveal.