1/2"(12.7mm) 0.50"(12.7mm) is roughly the size of an M&M or Skittles candy 3/4"(19.1mm) 0.75"(19.1mm) is roughly the size of a penny 1"(25.4mm) 1.00"(25.4mm) is roughly the size of a quarter 1 1/4"(31.8mm) 1.25"(31.8mm) is roughly the size of a half dollar 1 1/2"(38.1mm) 1.50"(38.1mm) is roughly the size of an Eisenhower dollar 1 3/4"(44.5mm) 1.75"(44.5mm) is roughly the diameter of a golf ball 2"(50.8mm) 2.00"(50.8mm) is roughly the size of the top of a small can of V8 2 1/4"(57.2mm) 2.25"(57.2mm) is roughly the diameter of a racquetball or billiard ball 2 1/2"(63.5mm) 2.50"(63.5mm) is roughly the diameter of a tennis ball 2 3/4"(69.9mm) 2.75"(69.9mm) is roughly the diameter of an official MLB baseball 3"(76.2mm) 3.00"(76.2mm) is roughly the diameter of a hockey puck 3 1/4"(82.5mm) 3.25"(82.5mm) is roughly the diameter of a 5 ounce can of tuna 3 1/2"(88.9mm) 3.50"(88.9mm) is roughly the diameter of an 11" softball 3 3/4"(95.2mm) 3.75"(95.2mm) is roughly the diameter of a 12" softball 4"(101.6mm) 4.00"(101.6mm) is roughly the diameter of a large McDonalds soft drink lid
Average team size is 1.75"(12.7mm); 90% of teams order 1.50"(38.1mm), 1.75"(44.5mm) or 2.00"(50.8mm)