• SPTHB

    Head block for 12″ x 12″ tower box truss

  • SPTHG

    Hinge block with a set of 4 spigots for 12″ x 12″ tower box truss

  • SPTSB12

    Sleeve block for 12″ x 12″ tower box truss

  • SPTTBS

    Steel and aluminum base with four outriggers for 12″ x 12″ tower box truss