We realize that the use of multiple measurement systems (metric, decimal and imperial) throughout our site can be a little confusing. We truly do now live in and serve a global village in which very few countries still utilize the imperial measurement system (USA, Liberia and Myanmar for you trivia buffs).
For the listing of measurements on our site, we've chosen to adopt the measurement system most commonly used by our raw material vendors for each specific item. To help minimize any confusion we've created a few guides to help you convert the units and better understand how certain parts may be able to fit together.
We've also included these charts on the "Size Guide" tab on each detail page for handy reference.
The toy size recommendations made throughout our site are guidelines only. The best choices are always made based on a bird owner's knowledge of their individual bird's preferences and play style. Some larger non-destructive birds may enjoy smaller toys and small birds who are tenacious chewers may prefer larger toys.
On the detail page for each item in our store you will note the use of sizing icons as follows: 
For more information on choosing toys for your birds please refer to our article section.
& Small bird toys are most appropriate for:
are most appropriate for:
are most appropriate for:
are most appropriate for:
