These clear, lightweight Salter 1606TLC Nasal Cannulas (Without Tubing) incorporate a unique, gently curved faceplate that eliminates the need for irritating flaps. The arced nasal prongs provide a secure, comfortable oxygen flow, without undue pressure or irritation on the nostrils, while the pre-attached E-Z Wrap Soft Foam Ear Protectors add comfort behind the ears where you need it most.