Three By Three Seattle Up Date! Silicone Dry-Erase Weekly Planner Vertical Metallic (34805) Product measures 3.5" x 14 " Silicone weekly planner magically adheres to any non-porous surface Re-usable and non-scratching Metallic silicone gives sleek look of stainless 0.3mm dry-erase silicone and Requires no mounting hardware