Plantronics Spare Fit Kit for CS540 - Includes: 3 Earloop & 3 Eartips Fits Plantronics CS540 Earloops Kit Ear Loop Made Of Nylon Material For CS540 headsets Replacement Ear Loop Kit for Plantronics CS540 Includes: 1 small, 1 Medium, 1 Large Earloop & 1 small, 1 medium and 1 large Eartips