Crescent Picture Hanging Tool: Hang It Perfect Makes Frame Hanging Simple & Fast!

I always like to use two hooks per picture for greater stability and straighter hanging. Will this tool allow for that? Video shows one hook.

Wondering whether to buy the 24 or 26 inch tool. Suggestions?

What's the weight limit?

I have owned this for more than a year and like it a lot. I lost the pins in a recent move; how do I order replacement pins?