Martins Super Markets are collecting money for Special Olympics athletes, now through March 31st. Customers can donate either by rounding up their purchase or adding an additional $1, $5 or $10 at any checkout lane.

SpartanNash, which owns Martin’s, has raised more than $10 million dollars for Special Olympics throughout its 40-year partnership, and employees have volunteered tens of thousands of hours to the non-profit.

In addition, SpartanNash employs more than 25 Special Olympics athletes.