Blue has been scientifically proven to be a calming and creative color. So you should probably use this royal blue twin loop wire binding spines to bind together your next project. With its vibrant shade, it'll inspire strength and creativity. And Renz twin loop wires portray security by offering a permanent binding solution. And we have 2:1 and 3:1 pitches available and various thicknesses to accommodate large and small binding projects. All you'll need is a binding machine and wire closer, and you're binding ready.