Size: 12x7mm (External size) and 7x4mm(Internal size) MOUNT TYPE: Push in, Slide in, no screws needed USE: Replace lost worn or broken nose pads for eyeglasses with these quality replacements Material: Very soft silicone, non-slip Note: Please check your eyeglass metal frame according to the picture before you order them. Our soft silicone nose pads can easily be attached to your frames to help keep your glasses in place throughout the day and offer next-level comfort to your frames. The premium silicone material is soft and comfortable, relieving irritation that can be caused by glasses.