Precision Layering Mini Slimline B Etched Dies is from the Precision Layering Basics Collection. This set of 12 thin metal dies creates precise layers for your mini slimline cards. It will cut perfectly spaced layers of 1/8-inch. When combined with the S4-1158 Precision Layering Mini Slimline A set, you will achieve a 1/16-inch border. No more measuring, the work is done for you! This package contains Precision Layering Mini Slimline B: a set of 12 metal dies measuring between 0.40×3.40 inches and 3.15×6.15 inches.