Nice mushroom eartips. Soft black neoprene. They don't screw on, so they fit onto just about any binaurals regardless of the screw threads you have. They're very nice. This price gets you 2 (which you will want unless you have only one ear). They have withstood the test of time, and so should hold up unaffected by the years to come as well - unlike if they were rubber - and our inventory is depleting, so make sure not to lose them! You can also get our larger white silicone eartips by clicking here.