DETAILSFeatures: Stable and Appealingly Practical Designed Four Point Support with Protective Rubber Discs Adjustable Height Comfortable and Quick with Engage and Lock Knobs Ideal for a Second Keyboard or Laptop Provides 10 Different Height Adjustment Positions Adjustable Stacker Width Safe & Reliable Keyboard Placement Rugged & Durable Metal Construction Quick & Convenient Height Adjustment Adjustable Rubber Supports to Support Equipment Above Easy to Assemble, Easy to Adjust Spider Design with Height, Width, and Depth Adjustable Folding Design for Travel and Storage Designed for Home Studio, Classroom, Stage and Recording Great for sitting to avoid any bars while sitting What's in the Box: (1) Design Stands (2) Leg frame (2) Keyboard support arms Knob Knob Bolts Rubber Pad Cords ties Technical Specs: Load Capacity: 177.8 lbs. Arms Width: 7'', 11.8'', 16.5'', 21.6'', 26.4'' and 31'' -inches Arms Depth: 13.6'' -inches Adjustable Height: 23.6'' x 40.2'' -inches in 28 Stages Product Dimensions (L x W x H): 37.4'' x 22.4'' x 23.6 - 40.2'' -inches What's In The BoxWhat's in the Box: (1) Design Stands (2) Leg frame (2) Keyboard support arms Knob Knob Bolts Rubber Pad Cords ties MANUALS & DOWNLOADS PKST58 - Manuals