Artino resonance pin stoppers are designed to help the cellist play with more facility and comfort whilst enhancing the sound of the instrument. A combination of non slip rubber padding, ergonomic pin hole, sturdy metal build and support strap ensures that your cello is held steadily in place. Artino resonance pin stoppers are designed to help the cellist play with more facility and comfort whilst enhancing the sound of the instrument. A combination of non slip rubber padding, ergonomic pin hole, sturdy metal build and support strap ensures that your cello is held steadily in place. Furthermore, the inside of the stopper is hollow, to allow for a full bodied resonance and enhancement in the sound of the instrument.