You may withdraw your available cash balances via:
Bank transfer:
https://help.stackermarket.com/en/articles/6098855-how-to-make-a-fund-withdrawal-from-my-account-to-my-bank-account
Virtual debit card (for Pro Account members only): https://help.stackermarket.com/en/articles/6160601-how-do-i-withdraw-my-sales-proceeds-to-my-nexus-unionpay-virtual-debit-card
Related articles:
Is there a fee to request/process a fund withdrawal?
Can I wire my funds to a different bank than the one I funded with?
Is there a maximum withdrawal amount?
http://help.stackermarket.com/en/articles/5355804-is-there-a-maximum-withdrawal-amount
How long does it take to receive funds from a withdrawal?