For a more in-depth article, please refer to https://lido.mixbytes.io/docs/guides/wrap-and-unwrap-stksm.
Similar to Lido's stETH, stKSM rebases (balance changes) daily. Similar to Lido's wstETH (wrapped stETH), wstKSM's balance also remains fixed, and functions as a wrapper.
Unwrapping wstKSM for stKSM will return wstKSM back into a rebasing token, which accrues rewards daily through balance rebases, similar to Lido's stETH.
Head over to kusama.lido.fi.
Connect your wallet.
Head over to the "Wrap & Unwrap" tab.
Input the amount of tokens that you would like to unwrap.
Confirm the unwrapping transaction in your wallet.