16pcs XS/S/M/L Comfort Eartips for Sennheiser HD 1, CX 3.00 and CX 5.00 (B-NSEN)
Sennheiser CX 3.00 In Ear Earphones / Headphones. Compatible with the Following Sennheiser In Ear Earphones. Sennheiser HD 1In Ear Earphones / Headphones. Sennheiser CX 5.00 In Ear Earphones / Headphones.