The Rohema Poly Brushes are extremely versatile. They are very durable due to the fine polymer fibers used. With two rubber rings each, the brushes are flexibly adjustable. If they are fanned out wide, you can create both rich basses and high slap sounds. If you shape them to a more round rod, playing techniques like with normal wooden sticks or rods are possible. The Poly Brushes are an absolute multifunctional tool for drums or Cajon. Due to the soft fibers, even sensitive drumming surfaces are not damaged. The diameter is 22 millimeters with a length of 365 millimeters.