Luxilon 4G Tennis Racket String - Set and Reel

I was under the impression that the "130" designation means 1.30mm but the "16L" designation is for 1.25mm. Why does this have both?

What is the recomended tension, l´m intermediate player, and have 68 years old. I used strings luxilon 4G 16L?

Im wondering do these strings work with the crosses on the SW102 autograph racket?

is this an entire real? or can i just string 1 racket with this