Securely & dependably holds all sizes of notebook, iPad(R) & tablet; Lightweight, sturdy unit folds flat to be convenient & portable--no loose parts; Manufactured for use in home, studio or on the road; Telescoping height adjustment with rotating tray fits all needs; 4-prong antislip tray holds notebook securely in demanding environments; 1-year warranty; Telescoping height; 12.6-16.7;