They have rounded corners and are 5/16" thick, which makes them straightforward to mortise in place. The small handles are 3" wide and 2" high, and the large are 3-9/16" wide by 2-7/16" high.
Available in either old brass or polished brass, each handle requires four screws (included). Should not be used as chest handles, as the recessed portion opens out to only about 45° from vertical.
Handles priced individually.