Billiard NINE-BALL Set:2-1/4 Inch Regulation American Pool Ball Set, Includes 9 Numbered Balls and 1 White Ball REGULATION SIZE:These Pool Balls are Standard Size 2-1/4"（57.2mm） in Diameter and Regulation Weight 6OZ High-quality Polyester Resin:high-quality polyester resinThis billiard suit is made of high-quality polyester resin, which has the advantages of impact resistance, scratch resistance, smooth surface, lasting luster, high density and durability.It is boxed and has a cotton base to protect the balls from colliding with each other. Great Billiard Gifts:If You're Looking for a Holiday Gift for the Billiard Player Person in Your Life, or Prepare a Set of New Billiard Balls for Family Union, Look NO Further!Our Billiard Balls Makes for a Great Billiard Gifts for Friends and Family. Applicable: Great for game rooms, bars, sports matches, leisure exercise, and players at all skill levels Billiard NINE-BALL