Features: This professional speakers dust cap effectively repairs damaged speakers cones or high frequency cups, restoring original sound clarities and extending speakers lifespans by preventing dust and magnetic debris from contaminating the voice coil. from paper based or composite fiber materials, it features moderate rigidity and lightweight properties to minimize sound distortion, ensuring faithful frequency response reproduction for optimal sound performances. for sound enthusiasts and professional repair technicians, this accessory offer a cost effective solution for maintaining and upgrading personals or commercial sound systems. Replace worn out dust caps home stereos, car sound setups, or portable speakers to enhances high frequency clarities and directional sound diffusion in various listening environments. With included adhesive glues, installation is straightforward—simply clean old residues, apply glues evenly, and attach precisely for quick, professional speakers repair. Specifications: Materials: paper Size: as picture show styles: 19 cores, 25 cores, 38 cores, 50 cores(optioanl) Package Includes: 10Pcs speakers Dust Cap note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.