The 'Extender/ Reinforcement Strip' Die is part of the Delightful Discovery Collection from Everyday Memories. This die allows you to add a reinforcer to your Everyday Memory base pages as well as extend the width of older base page dies to fit the Memory Binder. This set includes 1 thin metal die, which is approximately 1.4" x 8.4" (3.5 x 21.3 cm).