Item Type: Memory Foam Ear Tips Material: Memory Foam Size: Three, L M S Inner Diameter: Approx. 3.0mm/0.12in13 Sizes: 3 pairs of memory foam earplugs, 3 sizes, each size has 1 pair of earplugs; (L/M/S each pair) There are 3 different sizes, suitable for most people's ears. The inner diameter is 3.0mm. 2High Quality Material: Replacement earplugs made of slow rebound memory sponge material can provide more noise isolation, ear stability and lasting comfort, and it will not hurt to wear for a long time. 3Replaceable: This memory foam earplug is a replacement for any damaged, scratched, defective or missing earplugs, giving new life to your headphones. 4Comfortable: The soft ultra soft memory foam can change with the ear canal and fits any type of ear canal perfectly. It is very suitable for fixing the earphones to prevent them from falling during exercise. 5Compatibility: The memory foam earplugs have an inner diameter of 3.0mm, which is durable, flexible and detachable, suitable for headphones with small sound holes.Please allow 0.1?0.2cm/0.04?0.08in error for manual measurement6 x Ear Tips