The On-Stage SM7122 is the American classic design that every band student has had for years. It has a 2 section shaft w/cam locking clutch, and folds for easy storage and portability with a spring-loaded trigger release. The two section vertical shaft with cam locking clutch and tilting book plate features make this stand adjustable for sitting or standing positions. The fold out extensions with a six point hinge system can hold three 8.5" x 11" sheets.