This is a glass to glass partition. It is done in two broad categories; laminated glass and toughened glazed. Toughened glass, also known as tempered glass is a safety glass processed through thermal treatment to increase its strength as compared to normal glass. When broken, toughed glass shatters to small pieces. On the other hand, laminated glass partitions is produced by binding an interlayer between 2 or more sheets of glass using heat and pressure. In the event of breakage, laminated glass is held together by the interlayer, hence safe for use in interior spaces.