Material: plastic Color: red / blue (plastic cup); yellow (ping pong balls) Size: plastic cup upper diameter: 9.5cm, lower diameter: 5.7cm, height: 12.8cm; table tennis diameter: 4cm Uses: bar entertainment toys, daily leisure toys 1DURABLE: The cups are made of high quality plastic that can be used many times. They are solid and better than the usual disposable cups. 2 DIMENSION: Ping pong ball 39;s dia is 1.6 inch; cup top 39;s dia is 3.74 inch; cup bottom 39;s dia is 2.16 inch; the height of cup is 4.9 inch. 3 GREAT FUN: Play beer pong with family and friends and everyone have a great fun and blast. Beer pong game can be a great idea for recreation or to kill time. 4 WIDE APPLACTION: This beer pong game set is ideal for all kinds of parties, such as holiday parties, pool party, family parties, summer parties, classmate reunion or some small indoor gatherings. 5 PACKAGE INCLUDE: 24 cups(12 red+12 blue) and 24 yellow ping pong balls.