Durable Quality: The bingo balls are made of high quality PP material, which is durable. Perfect Design: The lottery balls are designed with a transparent window to prevent the numbers from wearing or fading. Features: bingo ball,Lightweight, easy to use and clean, portable. Function: There are 1~30/1~50/1~100 numbers, and the diameter of each tally ball is 2.2 cm/0.87 inches. Applicable: Raffle balls is suitable for birthdays, parties, games, supermarket tally, company parties, etc. Specification: Material: PP Size Chart: 2.2cm / 0.87inch Package Includes: 30 Bingo Balls or 80 Bingo Balls or 100 Bingo Balls (Optional) Note: Please allow slightly errors due to manual measurement and different monitors.