If an SKL token holder decides to delegate SKL tokens with a validator, the delegator will earn token rewards based on the number of tokens they delegated, the commission percentage set by the validator, and the amount of time they stake for.
Initially only the 2-month epoch and associated with it rewards is available. In the future delegators will receive a bonus dependent on the length of time they choose to lock up and stake.
The staked tokens are locked for the duration of the selected staking period length. The longer delegators they lock up their tokens up, the more rewards they can potentially earn. These rewards are paid out and liquid at the end of every epoch. Once chosen, staked tokens are locked until the time period they chose is complete.