Brushes in a spiral pattern (to the end sleeve of metal) that should not be placed on a sleeve. Package containing 5 brushes.
There are also packages of 5 brushes in a spiral conical. Three different types: type A (2.5 to 5 mm), type B (3.1 to 8 mm) and type C (6 to 11 mm). Rather, it is the brushes spiral to treat larger interdental spaces.