Comes as just the BMS and the leads as shown in the pictures.

Original product listing is here:

aliexpress.com/item/1005002727774928.html?spm=a2g0o.order_list.order_list_main.276.3a5f1802XUXNHi

This requires 500A contactors in order to be properly wired up, I'm selling these here:

https://www.ebay.co.uk/itm/176390918181