Zhè bù dòngmàn de zhōubiān chǎnpǐn mài de hěn huǒ.
The merchandise for this anime is selling really well.
Tips
usage
周边 has a massive second life meaning 'merchandise/merch' — anime figurines, branded keychains, concert t-shirts are all 周边 (short for 周边产品). This is the word you'll see all over Taobao and Bilibili.