SAN FRANCISCO (KCBS) — San Francisco’s first Lego store is opening Friday and will have special giveaways through the weekend.

Lego’s first store in the city will open at 10 a.m. Friday at the Westfield San Francisco Centre mall at 838 Market St. and will feature kid-friendly designs and displays along with hands-on play areas.

Customers during the opening weekend celebration can join a Lego Master Builder in constructing a 8-foot model of Jay, a character from Lego’s Ninjago toy set and TV series. The build will take place from 11 a.m. to 6 p.m. Friday through Sunday.

The first 400 customers each of the three days to make a qualifying purchase will receive a free giveaway—a backpack on Friday with a purchase of $50 or more, a limited-edition Lego set on Saturday with a purchase of $99 or more, and an exclusive Lego minifigure set on Sunday with a purchase of at least $50.

There are three other Lego stores already open in the Bay Area, at the Hillsdale Shopping Center in San Mateo, the Stoneridge Shopping Center in Pleasanton and the Westfield Valley Fair in Santa Clara.

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