Keystone Blank Inserts-Black Pack of 10 Used to fill unused keystone openings on faceplates or patch panels. Easy to use snap-in insert.& Warranty 1-year limited warranty. Why 4Cabling? Australia's leading importer & wholesaler of 19" server racks, copper, ethernet cable, fibre optic leads & structured networking products ISO 9001, NSW Govt. & GITC (QLD Govt.) approved supplier Secure online shopping 24/7 A loyal customer base of 100k+ who trust us for their data & electrical needs Over 3000 quality products in stock ready to go All products are approved as per local Australian standards Warranty & peace of mind return policy Lightning-fast delivery nationwide Expert advice Proudly 100% Australian owned & operated