This is a list of blades of national teams, rowing clubs, schools and universities. The designs are not trademarked while the sport remains near globally not-for-profit although in some jurisdictions a club may assert design rights and similar to prevent imitation. It is also possible where identical or near identical blades are watched in winter head races or in summer side-by-side (multi-lane regatta) races for there to be instances of mistaken identity among supporters all of which considerations are commonly borne in mind instead of choosing unpainted blades among established clubs.