Rock-solid frame with standard bookrack. Four sizes, including A+, guarantee a fit for every student. MODEL SHAPE HEIGHT H108 A+ 18.5'' H107 A 18'' H105 B 15.5'' H103 C 13.5'' H1X8 - NBRK A+ 18.5'' H1X7 - NBRK A 18'' H1X5 - NBRK B 15.5'' H1X3 - NBRK C 13.5''OPTIONSNon-Skid GlidesQ-Ball GlidesSteel Glides
