Houston Instruments ECX-100 (four rolls) Chart Size: 11.000" X 100' Time Rotation: Number of Ranges: 2 Ranges: (-.3) - (10.3), Uniform Spacing0 TO 10 BY 1 (10.3) - (-.3), Uniform Spacing 10 TO 0 BY 1 Four Rolls per order... products.retail_price products.price_was products.price_now $60.00