Euro coins edge of the €2 coin also protects it from counterfeiting. Euro coins were designed in cooperation with organisations representing blind persons, and as a result they incorporate many features allowing them to be distinguished by touch alone. In addition, their visual appearance is designed to make them easy to tell apart for persons who cannot read the inscriptions on the coins. The coins increase in size and weight with value. Of the eight denominations of euro coins, the three lowest denominations are small, resemble copper in colour and are quite thin and light. The next three denominations resemble gold in
Token coin for smaller denominations. Tokens are being phased out by many casinos in favor of coinless machines which accept banknotes and print receipts for payout. (These receipts - often nicknamed "TITOs" for Ticket-in, ticket-out, can also be inserted into the machines.) In video arcades, they are also being phased out in favor of magnetic cards, which can also count how many tickets one has, allowing arcades to also do away with paper tickets. Staff tokens were issued to staff of businesses in lieu of coins. In the 19th century the argument supporting payment to staff was the shortage of coin in