In about 9 hours, all PRL holders will be given SHL on a 1:1 value. Meaning, if you have 100 PRL, then, you will also have 100 SHL for free. There will be no token sale for SHL, therefore, this is the only way to attain SHL. The total supply of SHL will match the total supply of PRL (after the 10m PRL coin burn event). For this airdrop, the only exchange that will be supported will be KuCoin. For all PRL holders who are not using KuCoin, it is recommended to use personal wallets like MyEtherWallet.
Last month, I have expressed in one of my posts - Good Altcoins to Watch for in the Next Months - BTCP, PRL, LINDA - that PRL is one of the coins to watch out for in the next months. There have been various posts that ranks PRL as one of the best coins for 2018.
Below is an excerpt from my previous post
Now, what is Oyster Shell (SHL)?
While PRL is used for static data retention on the tangle, SHL is used as payment for connectivity and Dapp operation across the Oyster platform. In the future, SHL can be used to access the decentralized web, connectivity that entirely bypasses Internet Service Providers and centralized infrastructure.
For more information about SHL, please visit oysterprotocol.com
You can also view the Whitepaper here.