Boston-based Fidelity Investments will offer BlackRock’s iShares ETFs to its broker-dealer clients in non-commission based managed accounts.

Fidelity announced on Tuseday that the 70 iShares ETFs will be added to the suite of 15 Fidelity-managed ETFs already available commission-free on its platform.

The commission-free ETFs cover more than 50 different Morningstar categories from a broad range of asset classes, according to the company.

Fidelity now has more than $230 billion in ETF assets under management.