These activity mats measure 120 cm x 80 cm (about 47" x 32") and are long enough to comfortably hold a set of Red Rods or Number Rods.  They are made of tough olefin fibre, a synthetic fibre which is commonly used in automotive interiors for its durability and colourfastness.  The back is lined with a light felt material.  Spot clean with a damp cloth and mild detergent.