Polar Coordinates 10 Concentric circles 2" apart, 15o graduation, 0-180 and 90-270 in yellow P Polar Coordinates48" high x 48" wide Aluminum frame and full length tray Availability: Usually ships in 5-7 business days. PC44$405.00 Call our toll free help line at 1-800-393-4868. Buy Factory Direct with FREE SHIPPING! Anywhere in the Continental United States. No hidden shipping charges! (If you live in a major U.S. City, you may be charged a high service area fee by the shipping co. Please call us toll free at 1-800-393-4868 if you reside in these areas before ordering.) Please allow 5-7 working days for shipping.