Specifications:
Product Name: Rubber Wiring Grommet
Inner Diameter: 6.4mm/0.25"
Outer Diameter: 10.3mm/0.4"
Mount Diameter: 8mm/0.31"
Thickness: 8.2mm/0.32"
Materials: Rubber
Color: White
Net Weight: 16g
Package Content: 50 (±2%) x Rubber Wiring Grommets

Description:
These grommets are used to protect cables or pipes passing through metal panels.
They can be produced in many different types of rubber, for various industrial and anti-vibration purposes.