Pyramid A 5 Nylon

I've used around five of these for a secondary school suite of classical guitars and so far I'm very happy with the quality. I had used D'Addario nylon sets in the past which would break in no time at all. These have lasted around six months of hard use so far which is longer than I thought they'd last.
The clarity of tone is ample for what we need. Maybe not as impressive as more expensive brands but definitely worth a purchase for the average user.
Nice and cheap solution especially when other companies tend to charge a fortune for single strings.

These Pyramid single strings are good quality budget strings. I like to change bass strings on my workhorse classical guitar more often than I change the treble strings. These A5s, along with the D4s and E6s, are my first choice for this job. They have good tone and reliability. You can get better strings, but you pay a lot more for them.

Good quality/price ratio.