Ideal for preventing neck cramps or eye strain. With these practical glasses, you can read in bed or watch TV while lying on your back. The perfect solution for people with reduced mobility. Change your angle 90 degrees of downward vision and you don't have to move your head. Using reflective prisms made from proven optical materials, these glasses allow you to read, watch and do other activities while remaining on the back.Description: Wouldn't you like to see or read more easily while lying down? Want to make it easier to see far, read or just see what's going on around you without looking up? If so, this product might help. Reflecting prisms made from proven optical materials are used. Horizontal glasses allow you to read books, see far and do other activities while lying on your back. Also great for preventing neck cramps or eye strain. Features : - Black color. - Material: Resin - Dimensions: 16.5 x 8 x 5cm. Scope of delivery: 1 Pair Horizontal Tilt Glasses Note: The data are all manual measurement, please allow 1-3cm error, due to the light and display difference, there will be some color difference, depending on the physical item received.