The price is for the 24, Cast Brass, Rose Brass, Large Hole, Spring Loaded, Rosettes. The rosettes have an “Inner Ring”, that is spring loaded. The “inner ring”, has a diameter under 1 1/8″ and the outer ring has a diameter under 2 3/8″. The tones vary a little. There are no holes to mount them, but each rosette, has 2 prongs on the back, that recess into the wood and something must have have “pushed” on the front, of the “inner ring”. Sargent manufactured these vintage rosettes. These 24, Cast Brass, Rose Tone, Spring Loaded rosettes, would display well with a project.