The Osborn TY Encapsulated Wheel Brush with Knot Wire is for heavy duty applications that require extra aggression. The brush also has a wider width than stringer bead styles, allowing it to work faster on larger areas. The TY encapsulated brushes feature an elastomer which firmly supports the individual wire tips to give stronger brushing action and long life. These wheels can be used singly or mounted in multiples to create a wide brushing face. They are safer, more aggressive and longer lasting since flexibility is minimized.