Tennis umpire stand is composed of three parts, namely, base, supports and seats.

Tennis umpire's stand is composed of three parts, namely, base,    supports and seats.

Base and support of the seat are made of circular tubes in spec. of φ 32 x 2. 

Hand rack, made of veneer, is mounted on top of the support and connected to

 the support by a hinge to ensure flexible turnover.

Awning is equipped with the seat to protect umpire from being exposed

 to the sunlight.