Coinbase has introduced the first U.S.-issued bitcoin debit card, the Shift Card, in partnership with Shift Payments. The Shift Card is a Visa debit card that currently allows Coinbase users in 24 states to spend bitcoin both online and at physical points of sale at more than 38 million merchants worldwide.

“Merchant adoption has come a long way over the past few years, but it’s still difficult for people to make regular purchases with bitcoin,” notes the Coinbase announcement. “Buying gas at a local gas station or groceries at a neighborhood grocery store with bitcoin has not been possible in most cities in the U.S. Thanks to Shift Payments, it’s now possible to use bitcoin to buy gas, groceries, and much more. With the Shift Card, you can now spend bitcoin anywhere in the world that Visa is accepted.”

Coinbase users living in the states where the service is available can order a Shift debit card for $10 and link it to a Coinbase wallet. When the Shift debit card is used to make a purchase, the equivalent value of bitcoin (based on the current spot price of bitcoin on Coinbase) is debited from the user’s Coinbase bitcoin wallet. For certain transactions, such as gas purchases and dinner bills, Shift will debit more than the purchase amount, and refund the remainder to the user when the final payment amount is settled.

There are no annual fees, no bitcoin-to-dollar conversion fees, and no domestic transaction fees. Coinbase says there are no domestic transaction fees “for a limited time,” which seems to indicate that domestic transaction fees could be added in the future. There is a $2.50 ATM fee and a 3 percent international transaction fee. The daily ATM withdrawal limit is $200, and the default daily spending limit is $1,000.

The card isn’t available to users in New York, Florida, and many other states. Coinbase and Shift Payments say that they are working through legal and regulatory matters in the states where the Shift Card is not yet available.

Shift Payments wants to integrate all payment options available to a user in one debit card. Users can connect a Shift Card to multiple accounts to seamlessly spend all supported payment means, including digital currencies, with the same card.

“The Shift Card works like any debit card today,” notes the Shift website. “Connect your existing accounts and spend Coinbase or Dwolla, immediately and directly, everywhere Visa is accepted.”

The Shift card isn’t the first bitcoin debit card, but the availability of a Visa-branded bitcoin debit card from a major bitcoin exchange and wallet operator is likely to represent a quantum leap in the space.

“At the end of the day, what we’re trying to do is make bitcoin easy to use,” Coinbase vice president of business development and strategy Adam White, told Wired. “We want to make it easy to buy and sell bitcoin, and we want to make it easy to spend. A mainstream debit card based on bitcoin is a key element.”

Of course all U.S. bitcoin users already can spend their bitcoin by converting them to dollars and sending the dollars to their bank accounts, but the process is lengthy and probably overly complex for some users.

Therefore, the Shift Card is likely to make Bitcoin much more useful in daily life.

Wired notes that existing Coinbase customers are now likely to start spending more of their bitcoin, rather than just speculating, and new customers will be attracted to the digital currency because they can more easily spend it. Then, merchants will be more motivated to start accepting bitcoin, which could start a runaway feedback loop that will boost the Bitcoin ecosystem.