Secure your endpin virtually anywhere with the unique Pinstop. It's elegant enough for a concert hall yet perfect for the school gym. The adhesive surface will stick to almost any floor: vinyl, tile, wood, stone, or concrete. Use it on carpet for the enhanced resonance of a hard floor. When playing outdoors, the Pinstop will actually stick to grass! Cleaning the Pinstop is easy, when needed, with soap and water. It fits in your pocket or accessory pouch and can be used with cello or bass. This is the recycled black plastic Pinstop.