48 X 72 Extension Right Studded | Clear .200 Inch Vinyl Computer Left NonStudded Chair Mat | Black .125 Inch Vinyl The sum of the measurements

The sum of the measurements entered into Sides D F & H must equal the sum of the measurements entered into Sides N L & J

Click here to be taken to a tutorial video

They also need to equal the measurement entered into Side A

They also need to equal the measurement entered into Side A

48 X 72 Extension Right Studded | Clear .200 Inch Vinyl Computer Left NonStudded Chair Mat | Black .125 Inch Vinyl The sum of the measurementsNeed help measuring? Click here to be taken to a tutorial video. Make sure sides A & B are not larger than the material's sheet size. The sum of the measurements entered into Sides C & E must equal the measurement entered into Side B. The sum of the measurements entered into Sides D & F must equal the measurement entered into Side A. The Breathe Through Option Chair mats create a great surface to roll on, but when a chair mat is placed on a carpeted