Unsurpassed in quality, each ball is made with Aramith’s unique phenolic resin making them among the sturdiest and most impact resistant balls on the market. Aramith phenolic balls last up to five times longer than other balls made from polymers or polyester. Billiards-play simulators have shown that Aramith phenolic balls are still perfectly playable even after 400,000 hits, whereas others were rendered unusable.