Why You’ll Love It: This thing solves a problem you don’t even know you’ve got. If you’ve had to try and lay a piece of leather down next to a zipper straight, then you understand that that can be extremely difficult. While its the zipper bending or the zipper tape stretching the opposite direction it can create a real fuss. This jig holds the zipper straight to give you a "fence" to push your taped leather up to, to line it up straight. Key Specs: Material: Thick acrylic Length: 12", 8", 6"-3 Piece Set Recessed middle to staddle zipper Features: 3 Sizes to be used with #5 Zipper Made from durable 1/4" Acrylic Things to Know Before You Buy: It’s made from the same acrylic we use in our high-end templates, so you know it can take a beating. One side’s got a recessed notch to help straddle to zipper to keep it straight. The other side’s made for quick centering without having to bust out the calculator.