Clearly Secure individual glass blocks combine the qualities of beauty, performance and practicality in a material that permits the flow of light. Glass blocks are a special building material made of glass and laid similarly to brick or concrete blocks. Used in partitions, shower walls, curtain walls and room dividers, glass block permits light from one space to travel to another, helping to save on illumination costs. Glass blocks properties lend style and privacy while also helping to muffle sound. Additionally, individual glass block may be combined with other Clearly Secure glass blocks and Clearly Secure hopper and dryer vents to build enhanced privacy and security windows for basements, bathrooms, kitchens, garages, transoms, door sidelights, offices and much more.