Prat Start 2 Presentation Case, Rigid Cover, Multi-Ring Binder with 10 Sheet Protectors, Spine-Mounted Handle, 17 X 14 inches, Black (S2-2171)

to ringbinder mechanisms are the metal spine piece found in two ring binders these binder spines are most commonly used on the top or short end of letter size paper the Rings are spaced three and 1/8 inch apart to fit into standard 2 hole punched pages the binder mechanism base measures 5 and 1/8 of an inch long and 1 inch wide there is a hole on each end to allow for rivets to ring binder spines are available in round and straight D shapes as well as one inch or one and a half inch ring sizes this measurement is the inside ring diameter at the widest point for more information or to buy two ring binder spine mechanisms visit us at binding 101.com or call the number on your screen and if this video was helpful please give it a thumbs up and subscribe for more