Weems & Plath Telescoping Chart Case / Chart Tube keep your charts protected in the fully enclosed black plastic Telescoping Chart Case. The reinforced tubular rib design provides strength. The twist-lock telescoping feature easily adjusts to accommodate chart lengths from 60 - 120 cm (24” - 47”). A total of 7.62 cm (3”) diameter offers ample storage space. Come with adjustable shoulder strap and threaded cap for security.