Blue Tag Bit Size Chart

Weanling 9cm/3.5"
Shetland 10cm/4"
Yearling 10.5cm/4 1/8"
Pony 11.5cm/ 4.5"
Cob 12.5cm/5"
Full 13.5cm/ 5.25"
Extra Full 14cm/5.5"
Warmblood 14.5cm/5.75"

Extra Warmblood 15cm/6"