Opk and hot help!!!!

Cassie • Sat, Mar 15 2014 • Momma of Two Graci 5-7-15 Graeson 9-7-16! Angel Momma of Two Nov 2015 and Twin B Jan 19 2016!

Does any work i just bought some off ebay it had like 30 opk and 10 hpt??? Do they all work the same