Brand Name: KEITHNICO
Item Type: Earphone Silicone Case
Size: 4mm
Model Number: Silicon Earbud cushion
Package: No
Material: Silicone
Type: Silicon Earbud Earphone Covers
S size: Outer diameter 9mm
M size: Outer diameter 11mm
L size: Outer diameter 12mm
The inner diameter: 4 mm (+ - 0.5 mm)