Kaos Grey Silicone Skin Eyelets offer a safe and comfortable way to add unique details to any outfit. Highly customizable, these eyelets, made from implant-grade silicone, come in a variety of sizes from 4G (5mm) up to 1 inch (25mm) and have a wearable surface of 8mm. They are soft and squishy, yet durable. Do not use for ear stretching. To clean, wash with a mild non-scented antibacterial soap and water.