BAINBRIDGE 100 PK MARKING RINGS GREEN• Excellent quality Bainbridge Marking Rings.• Used for the marking of calves and lambs.Established in 1922, Bainbridge is a 100% Australian owned and operated brand supplying a very wide range of pet, poultry, hobby farm and hardware products. PETstock is proud to support this iconic family owned and operated Australian brand in its mission to serve pet and land owners throughout metro and country Australia.