The Global Specialties PB-105T 4,880 Tie Point Proto-Boards solderless breadboard assemblies combine Global's high quality, American made sockets with sturdy anodized aluminum and rugged backplates. Non Skid rubber feet and color-coded binding posts are included for the ultimate in utility. The Breadboard area features, see-through to the pin contacts, Transparent 6 High-Quality ABS Plastic Sockets & 11 Bus Strips, all with Phosphor Bronze, Nickel plated Contacts, each with Black row & pin numbered contact areas, Red & Blue Color printing for ease in applying power with 4 Red & 1 Black Binding Post, as well as 5 cushioned feet on the back.