Featuring a general 19mm diameter, these compatible grommets securely accommodate cables up to 7mm thickness through wall without disconnecting existing wiring during installation Crafted from premium silicone, these 3/4" wall grommets deliver outstanding flexibility, heat resistance, and waterproof sealing for stable cable management in setups and general wiring applications Ideal for enthusiasts, electricians, and homeowners seeking professional cable routing solution that secure organized and damage easy wall penetrations The star shaped silicone design maintains tight compression against cables and wall surfaces, offering shaking dampening defense for long term durability in dynamic environments Perfect for installing internet cables, security systems, or outdoor lighting through wall in residential homes, offices, or garage workshops, Manufacturer: Kaeltsyn