The Vanco 820407 Binding Post Keystone Inserts come as a pair in red and black colors, designed to seamlessly fit with Leviton, ICC, Allen Tel, and various other brands. These inserts offer reliable and versatile connectivity for your audio or electronic setups. Their compatibility ensures easy integration into existing systems, making them a practical choice for any tech enthusiast or professional. Enhance your connections with these durable and efficient binding post inserts. Don't miss out, upgrade your equipment today with Vanco's trusted quality!