1.Right or Left version 2. 1pc per pack 3. Power supply: standard 12V AC(on request: 12VDC, 24 AC or DC) 4. Brass latch 5. Steel ejector incorporated into the latch 6.Supplied with adjustable heigh striker, with self-lubricating nylon support in contact with the ejector 7.Loose external cylinder, 8.Can be installed on wooden or metal doors or gates.