Your first order of our custom-molded products must always be supplemented with 3D scanning of your ears (New), ear impressions or another custom-molded product you already have. See www.hypear.com for more information. 2 custom-molded earplugs that replace the standard tips (XS,S,M,L,XL) that come with your In-Ear headphones (1 for headset). (The headphones in the image are not included.) Design: Tube-shaped straight sound channel with constant diameter. Connection adapted to your existing In-Ear headphones/headsets. Material: Skin-friendly silicone Hardness: 40 Shore A Surface treatment: None Marking: Right 'R' and Left 'L' Color: Red-Right (Red-Right) and Black-Left