A Ricochet Send is a Samourai exclusive transaction type. Ricochet defends against bitcoin blacklists by adding additional decoy transactions between the initial send and eventual recipient. You should consider using Ricochet when sending to Bitcoin Exchanges, and companies that are known to close accounts for flimsy reasons.
Read more about Ricochet here
Samourai Wallet charges 0.001 BTC + normal miner fees for every 4- hop Ricochet transaction.
The fee is automatically paid by your wallet as part of the Ricochet transaction. You will be asked to review and accept the total fee before confirming the send.
Step 1 - Start with a normal send
Step 2 - Enable Ricochet
Consider first connecting to the Samourai Donations payment code. It is much better for your privacy if you make the connection before performing a Ricochet.