NavePoint Blank Keystone Adapter White 25-pack HEAVY-DUTY CONSTRUCTION made from impact-resistant and fire-retardant high temperature thermoplastic PROTECTION: These Keystone Blanks ensure a clean professional look to your installation and provide necessary protection from dust and debris in unused keystone ports. RE-USABLE: The sturdy construction ensures that these Keystone Blanks will stand the test of time and can be reused and repurposed as necessary. COST EFFECTIVE: Sold in multipacks to provide you with an economical solution every time.