These are the same strings I compete with. I've spent over two years perfecting the design, with hundreds upon hundreds of hours of play testing. Everyone who has ever played with them loves them.
These strings require no break in time and are at their best right at the beginning. They aren't gimmicky, they just play like a string should. They're super soft, have an excellent weight for controlled slacks, hold tension for days, bind extremely tightly, and last much longer than a regular cheap yoyo string.
These are the only type of strings I will be offering from now on, as I strongly believe that having one excellent string is better than having many mediocre strings.
Ten packs are $7, fifty packs are $20, and 100 packs are $30. Shipping is included in the price.