H-E-B is continuing a long-standing partnership with Tim Duncan with an exclusive limited edition line of breakfast cereal commemorating the Spurs power forward: Slam Duncan O’s.

The honey nut toasted cereal with chocolate puffs is expected to hit store shelves Jan. 16, H-E-B spokeswoman Julie Bedingfield said.

Details about the cereal including price and how many boxes H-E-B will ultimately ship were not immediately available, but Bedingfield said the limited edition item will debut alongside a new commercial starring Duncan.

“It was something we wanted to do to honor his retirement,” Bedingfield said.

The San Antonio-based supermarket chain previewed the product by air-dropping 300 samples to game attendees at the AT&T Center on Sunday, Bedingfield said. H-E-B also previewed a snippet of the commercial to fans, who were there to watch the Spurs retire Duncan’s jersey and face off against the New Orleans Pelicans.

H-E-B previously hinted in October at a mystery product and commercial involving Duncan set to debut in January. Duncan, who retired in July, reprised his role in H-E-B’s popular series of campy commercials starring the Spurs earlier this year.

The Duncan-branded cereal is the latest extension of H-E-B’s relationship with the 6-foot-11 power forward. Duncan began appearing in the supermarket chain’s commercials in 2004 and has since appeared in each round of its Spurs ads.

H-E-B became the team’s lead sponsor in 2004 and signed a five-year extension of the relationship in 2013. Players negotiate individual contracts with H-E-B, usually tied to the length of their Spurs contracts.

“We still have a long-standing relationship with him and will have for the next foreseeable future,” Cory Basso, H-E-B’s vice president of marketing and advertising, said of Duncan in October. “Even though he’s retired from the team, he’s still part of H-E-B’s team.”