Standard Size: Product diameter is about 57.2mm/2.25in, and single weight is about 140g. The billiard cue ball is light in weight, small in size, and easy to carry and use. High Quality: Billiard cue ball is made of excellent resin material, with unique impact resistance and wear resistance, very durable, and still useful after a long time of use. Easy to Use: This billiard cue ball has been calibrated and polished and can be used for billiards practice to improve your billiards skills. American Billiards Eight Balls: The billiards cue ball is a magic tool for practice and training, suitable for the American eight ball pool. Excellent Gift: These billiards cue ball have beautiful appearance and are perfect gifts for friends who love billiard. This is a must have for all billiard enthusiasts. It is made of high-quality resin, with unique impact and abrasion resistance. It is calibrated and polished, and suitable for beginners to practice billiards. Standard lines and dots make it easy for players to hit and control the ball.