Leatherette Earpads DesignThe 50mm/1.97inches ear cushions replacement ONLY fit some special brand from Plantronics Jabra VXi Blue Parrott B250-XTS Callez Wantek Arama AGPTEK MAIRDI VoiceJoy Office Headsets and Most Standard Size Headphones perfectly with the same specification. For compatibility list in details, please refer to the description belowUniversal Compatible Models NOT for Jabra Evolve 20 30 40 65 75 and Evolve2 Series. ONLY COMPATIBLE WITH SOME SPECIFIC HEADSETS MODELS LISTED IN DESCRIPTION. Some specific models from Jabra PRO 920 930 9450 9460 9465 9470 BIZ 620 1100 1500 1900 2400II GN 1900 2000 2100 2025 9120 9125 and Plantronics HW251N HW261N HW510 HW520 Blackwire C225 C310 C320 3210 3220 3310 3320 3315 3325 and ALL Callez headsets, etc. But For other headsets, please consult us for Compatibility Guide and advice.Ultra Comfort / DurabilitySuper soft and breathable leatherette Jabra headset ear pads enhance the comfortable experience and are designed for long-term wearing comfort and has strong durability to extend the life of your headphones.Easy to InstallSimple installation with no tools needed. The earpiece replacements make your headset brand new again: take off your old Plantronics earpads and put the new pads align with the headset ear loop to stretch them around to cover all edgesPackage Includes / Reassuring Service Ear Pads x10, Mic Foam Cover x5 (Headphone not included).