T-Bands size 8 for vineyard/orchard/garden

I have 2 unopened bags of T- Bands, looks like they measure 2.25" inside which would make them a size 8. I'm not certain how many are in each bag. The invoice that was with them shows that I purchased 900, and the website shows they come in bags of 300, so I'm guessing I originally purchased 3 bags of 300 and have 2 left. These are used to help secure plants to a trellis system. Typically used in a vineyard or orchard but can be used in vegetable or flower gardens too.