Quick answer: This is a pair of fins from Sherwood Scuba.
For bigger divers, fin fit starts with the foot pocket. Size to the boot or bare foot you will actually use, and check that the strap or pocket does not pinch. A blade that matches your kick style saves air and energy.
Check the brand's size chart against the boot you will wear. Wide or high-volume feet should lean toward the larger size, and open-heel fins give the most room to adjust.