It consists of a cylinder made of a substance known as "roller composition" or simply "composition", a mixture of glue and sugar (in the form of molasses or treacle), with various additives such as glycerin depending on the particular recipe.
Musical composition | musical composition | AP English Language and Composition | Roller Hockey International | roller coaster | The Roller Blade Seven | wooden roller coaster | Roller Derby World Cup | Algorithmic composition | Team Australia (roller derby) | Roller-compacted concrete | Roller chain | Return of the Roller Blade Seven | Providence Steam Roller | Major League Roller Hockey | Loch Ness Monster (roller coaster) | Juno Award for Classical Composition of the Year | Hello Kitty: Roller Rescue | Gotham Girls Roller Derby | Boomerang (roller coaster) | Albatross (composition) | USA Roller Sports | Titan (roller coaster) | The Beast (roller coaster) | steel roller coaster | S.L. Benfica (roller hockey) | Roller skiing | Roller rink | roller rink | ''Roller: Garrulous Roller'' by William Lewin, before 1790. Yale Center for British Art |