Need replacement pillows for your Nuance or Nuance Pro CPAP Mask? This is a pair of Nuance Pro Gel Nasal Pillowsfor use with the Nuance and Nuance Pro only in the size selected. These gel nasal pillows will not work with other nasal pillow masks. This is a medium with a part # of 1105174. The Respironics Chin Strap is a basic chinstrap that closes with Velcro and attaches to the headgear straps of the mask. It’s lightweight and easy to use. The chin cradle of the Respironics Chinstrap White has a narrow section and a wider section. You can position the chinstrap either way. Whichever gives you the best fit.If you are a mouth breather, or if you wake up with a very dry mouth, a chin strap can help. Part #302175. CPAP America is your one-stop-shop for all of your sleep apnea needs!