What's a propper arrow for a 24# recurve?

I've been shooting my recurve for almost a year now. It came with 12 arrows, 3 have broken so far and I'm thinking of getting new ones but I wanna know if these are even the right arrows.

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The arrows it came with are 30inch, sp500 with an inner diameter of 6.2mm and an outer diameter of 7.6mm.