I bought the 'PREP TOOL' from Guidelines 4 Quilting. It gives you a 'scant' 1/4" seam. You place it down under your foot and bring your needle down flush with the left side of the tool. Then you lay a Seam Guide on the right side of the tool. Then raise the foot and pick up the tool and put it back in its plastic bag. I've had mine for a few years and it's in perfect condition.
They also sell 'Seam Guides' that don't leave sticky residue that you place next to the 'PREP TOOL'. The 'PREP TOOL' can be used for many things besides being a 'scant' 14" seam guide. It also has a lifetime replacement guarantee. The 'PREP TOOL' is on sale for $10.76 and comes with an 8 page booklet. You don't need the booklet. It's self explanatory. The Guidelines 6 pack seam guides are $2.99. I love this tool and these seam guides. It's all I use.
Last edited by jcrow; 08-07-2013 at 08:09 AM.