The Build-A-Block Patchwork System PLUS Die Set from Gemini is perfect for creating fantastic patchwork projects.This set includes 14 dies that feature rectangle, isosceles triangle, and half rectangle dies that allow you to create a range of 4in, 6in, 8in, 9in and 12in sized blocks.Each metal die is 1.5mm deep and can cut through a multiple layers of varying materials with one movement. The dies include an accurate 0.25in seam allowance and the cut pieces are exactly the same size each time. Instructions and a block guide is included within the box.Please note: Some dies may have sharp points, edges or corners. Exhibit caution when using these dies and do not leave them unattended near children. Not intended for use by any child under the age of 14.Features & Benefits Includes 14 Dies Features rectangle, isosceles triangle, and half rectangle dies Can cut through multiple layers of material Create beautiful patchwork projects Specification Block Size: 4in, 6in, 8in, 9in and 12n Die Depth: 1.5mm