We've been manufacturing these for a number of years and they have proven very popular.
They provide a safe and convenient way of measuring koi in any vessel, meaning that koi don't need to be unnecessarily moved from one bowl to another for photographing/filming and then measuring.
Simply place the measurer in the bowl carefully and gently guide the koi along the side to see the size. Easy!
Available in three sizes:
Small - 55cm - £70
Medium - 65cm - £75
Large - 95cm - £95