Check the listing for details. GBC WIRE BIND BINDING SPINES BLACK 1/2" 12MM 100 PACK #9775028 TWIN LOOP WIRE. Condition: New. Listed at 78.34 USD. GBC WIRE BIND BINDING SPINES, BLACK 1/2" 12MM 100 PACK #9775028 TWIN LOOP WIRE These high quality GBC Premium Twin Loop Wires are some of the best Wire Binding Spines on the market. Sometimes referred to as wire-o, WireBind, wire combs or double loop wire, these elements let pages lie flat with 360" rotation for convenient note taking and photocopying. Made from the highest quality raw materials, twin loop wire provides a permanent bind to your documents giving you the peace of mind that comes from knowing your presentations always look great and stay secure. Twin loop wire comes in a "C" shape and you simply use your Wire Binding Machine or Wire Closer to finish your books. Permanently bind documents using sleek, metal WireBind spines. These high-tech, 32-hole spines ensure that your presentations will always look great and stay secure. Sheets lie flat with 360 degree rotation to allow for easy page turning and photocopying. Features: Durable 32 hole metal spinesProvides a permanent binding solution1/2" spine diameter115 sheet capacity100 spines per boxBlack Specification: Spine Size: 1/2"Sheet Capacity (20 lb paper): 112Detailed Color: BlackPeriod of Warranty: NoneBinding Style: WireBind®Dimensions: 1/2"