White Polytex offers Spinning Bobbins with special bushes at Button area. This product reduces hard waste while unwinding drastically. Spinning Bobbins with special bushes at Button area have very low eccentricity, less than 0.1 mm for high speeds up to 25,000 RPM. The special bushes at button area offer high stability & auto doffing. White Polytex Spinning Bobbins deliver high speed while unwinding in auto corner and is available for all standard spindles.