Kr-Net&reg; Blue Earbud Kit for Plantronics BackBeat Fit Bluetooth Sport Headset Headphone Replace Ear Tip Perfect High Quality Replcaement earbuds P2i coating (same material as the originals) to help resist damage from sweat or splashing water 1 Step Easy Replacememt. No Tools Needed Replace your dirty, damage earbud Packed in KR-Net Gift Box