Poly Blackwire Spare Ear Cushions BW3310/BW3320 – Poly 218433-01 or HP 85S23AA Poly Blackwire Ear Cushions part # Poly 218433-01 or HP 85S23AA are replacement foam ear cushions for Blackwire BW3310 & Blackwire BW3320 Product Details: HP SKU: 85S23AA UPC: 197497574524 Formerly Poly SKU: 218433-01 UPC: 017229174610 Comes with 2 per package
