design, light and comfortable,Upgraded vent design reduces noise during use Multiple standard silicon pads - three sizes (S/M/L). Soft silicone pads are comfortable to wear and easy to replace Ultra-soft, light and flexible bending tube, removable and easy to clean Ultra-light and soft headband, so you can hardly feel presence, less skin contact therefore giving you a free and comfortable treatment,Ergonomic design Material:Silicone plastic colour:Blue+gray+transparent Package Contents: 3 x (S M L) silicone pad 1 x nasal mask 1 x Headband Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.