Make Reading Easier - The gentle tinted colour and narrow narrow strip just above the reading line help to reduce visual stress, allowing you to read easier and more comfortably than ever before. Various Colors - 8 pieces gentle color tints include blue, green, yellow, grass, jade, orange, purple, , help to reduce visual stress, various of colors to allow you to find what works best .each color has 2 pieces,total 16 pieces in package. Supplies for All Ages - Toddler to adult. School, college, home or office use. Suitable Size and Durable Quality - 19 x 7 cm/ 7.5 x 2.8 inches, extremely durable plastic and well-made; Very flexible so it does not take up much space. Application - The coloured in the rulers help to reduce visual stress. The reading line helps to provide focus and clarity on each line. Reading rulers are a common first step in aiding Dyslexic children and adults enjoy their reading. Colour:Photo Color Material:plastic Package Contents: 16 x Reading Guide Strips Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.