Demand for the Beat Bullying wristbands has gone through the roof, but Radio One - which is behind the campaign - has just got 75,000 more in stock!
All 100,000 of the blue wristbands which were available to order on the station's website were snapped up on Monday - the first day of the campaign.
Newsround Online talked to the person running the campaign, Antonia Jolly.
She said it was brilliant that so many people were against bullying - and to watch the Radio One site for updates.
A host of celebs and sports stars have given backing to the campaign, which is backed by the government, and part of anti-bullying week.
It's thought about one in three kids are bullied at some point at secondary school and a quarter of pupils at primary school.
Antonia said: "Bullying is something that touches everyone - everyone knows someone who has experienced bullying or witnessed it."
She revealed that Arsenal star Thierry Henry was among the people who asked for a wristband on Monday.
On this page, you'll find a link to the Radio One website, where you can get the latest info on how to get a band and help stamp out bullying!