Flying hook
Flying hooks are metallic objects hovering in the air by a propeller. With the Lockjaw, Rayman can grab onto them and reach otherwise inaccessible places. They replace flying rings in Rayman and purple Lums in Rayman 2.
You first come across flying hooks in Clearleaf Forest where you are first introduced to the Lockjaw power, and they are since seen throughout the rest of the game.
Flying rings are remodeled in the Gameboy Advance version of the game, instead of looking like flying metal rings, they look like metal crowns on top of small semicircular hoops. Rayman can swing on these without the aid of Laser-Washing Powder.