Rhodia dotPad Grid Pad. Ideal for sketches and notes, these dot grid pads are a great tool for architects, designers, artists and those who love to write and sketch with a subtle grid. The 80g acid-free, pH neutral paper features light grey dots with 5 mm interval between dots that is invisible when xeroxed or scanned. The pad works well for drawing, regular writing and layout and design work. Each pad contains 80 micro-perforated sheets. PEFC certified (sustainable forest management). Rhodia dotPad Grid Pad - Black. Size of pad 3.25" x 4.75". 5mm grid.