golf tips john beer

I just bought a complete set of Scotsman Troon Advantage golf clubs at a garage sale for $20 including bag.

Can anyone tell me if this is a good deal or if they have ever heard of these golf clubs?
I don't know what blades are, I am sort of a beginner, have played at par 3 golf courses and love it. They just look like normal golf clubs to me, in very good shape. 3 thru 9 irons and 1, 3 and 5 steel drivers and one iron with a P on it
I just looked on the internet and the irons are cavity backs.(hollowed out) That's where they have Scotsman engraved in them

Wow, $20 for a set of cubs and bag, that's a steal. By the way, never heard of that make of clubs.

Big Sale 10 Complete Golf Club Sets 2011