They call themselves #Pennridge 225 — students who were given detention by their school, Pennridge High in Bucks County, Penn., when they walked out of school March 14 to participate in a nationwide demonstration against gun violence. But this was no ordinary detention.

The students had been warned by administrators that they could not leave during the protest and that Pennridge students could attend an assembly on campus to mark one month since the Feb. 14 shooting deaths of 17 people at a high school in Parkland, Fla.

The students left anyway, joining thousands of students across the country who walked out of school to honor the Parkland victims. Nationally, some students left classes with support from school administrators, some without.

Some schools got tough on students who left campus, with a few actually paddling students. At Pennridge, 225 of them received detention.

When the first group of students showed up March 17 — a Saturday — to sit in a two-hour detention, all 46 participated in another protest, this time a quiet one as they sat with arms linked. Each displayed a piece of paper with a name of one of the Parkland victims. Outside the school, students, parents and others shouted support for the kids and gave them cookies.

One Parkland student survivor, Lauren Hogg, dubbed the detention a “modern Breakfast Club” — a reference to a 1985 movie titled “The Breakfast Club” about kids in school detention — in this tweet:

More groups of Pennridge students will be serving detention in coming weeks.  Here are some of the videos taken from the first detention: