What is Bankbees and Niftybees

Can someone explain what is bankbee and niftybee ?

Thanks in Advance

BankBees and NiftyBees are Exchanges Traded Funds which are designed to replicate returns of Bank Nifty and Nifty 50 Index. They are like Index Mutual Fund’s but just traded on Exchange like stocks and unlike Index MF’s, you can Buy and Sell them any time throughout the day.