A safe and affordable solution for cable or wire pass-thru protection.  Protect your cables whether wiring into an enclosure or through your firewall.  Simple, rubber grommets can quickly be tugged out of position leaving wire insulation vulnerable to abrasion or even getting severed, a la French guillotine.

Cord size range:
1/2" gland accommodates .200-.472"
3/4" gland accommodates .375-.750"