It's the Sirka® Counter, which tends to your knitting by tracking three separate counts, AT THE SAME TIME. You don't even have to remember when to stop counting; the Sirka® counter does it for you. Here's how: The discs underneath the "face" of the counter rotate, allowing you to align the disc handles, or "crowns," with numbers on the face. Balls and springs hold the crowns in place until you decide to advance your counts. The "hands," which fit into slots on the face, remind you where each count ends.