Excellent value, these are sturdy standard gate hinges made from 3mm (just shy of 1/8") thick steel plate, zinc plated and finished with a black electrostatic deposition coating.
The hinges are loose-pin, with a 4" × 1 9/16" (100 x 40mm) mounting leaf and a 6" (150mm) long door leaf.
Priced per pair, with matching flat-head mounting screws included.