MoonDrop MIS Tip T55 Sponge Eartips (2 Pairs) - Comfortable Noise Isolation Ear Tips for In-Ear Monitors - Perfect for Music, Gaming & Travel

Inside diameter: 5.5mm, L/M/S
Outer diameter is about (mm):
S: 11.5 M: 12.5 L: 13.5

The T55 is suitable for Earphones with a conduit diameter (widest) of 6-7mm.

The T55 is suitable for Earphones with multiple unit designs such as the S8/Solis/Blessing 2/A8