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 light felt material and is not non-slip, so these should not be used as door mats.  Spot clean with a damp cloth and mild detergent.  Also available in blue.