May be a silly question but I’ve bought this stove (OEX Heiro) and on the box it says it’s only compatible with these gas canisters (110g, 230g and 500g)

The shop only had the screw top canisters in 100g, 240g (pictured) and 440g.

I’m assuming these are okay to use? They fit okay I just can’t work out why they’d specify the grams of the compatible canisters on the box.

Am I missing something?

Thanks