The American classic design of the On Stage SM7122B 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. Spring-loaded trigger release Two section vertical shaft with cam locking clutch and tilting book plate Fold out extensions with a six