Semi Pneumatic Wheel, Rubber, 14 in Wheel dia, 200 lb no checkout vibrant impressions Remarkably resilient ink dries vibrant impressions Remarkably resilient ink dries quickly and resists both fading and water Endlessly versatile ultra fine point is perfect for countless uses in the classroom has a nice thick edge for easier more accurate marking and helps keep your soapstone from slipping 36" tape measure printed on the medium & large Wizard limits the need for an extra tape measure Circumference & Quartering scale printed on every wrap limits the need for calculation Packaged in a durable 14 in semi pneumatic wheel with a steel hub Used with cylinder carts