UNIVERSAL FIT 61 KEY KEYBOARD CASE WITH WHEELS Features:spring recessed handles with rubber gripheavy-duty stackable ball corner with three-prong and six-rivert anchor Double anchor riverts9 mm laminated plywoodtongue and groove fit lock with keylow profile wheelslength adjusts from 38'' to 44''depth adjusts from 10.5'' to 16.5''height adjusts from 3'' to 5.5'' Professional Keyboard Case