Sheetz is celebrating National Meatball Day by offering customers 99 cents half size meatball subs with any purchase. 

Customers can take advantage of the offer on Sunday, March 9 (National Meatball Day) through Tuesday, March 11. 

Sheetz's half size meatball subs typically retails for $3.99. 

The deal can be redeemed at all Sheetz locations by adding it under the OFFERZ tab on the Sheetz app. 

Customers must make any other purchase to receive the promotional pricing. The offer can only be applied once per My Sheetz Rewardz member.