Fully adjustable for safe use on stairways
Rugged 1 1/2 in. square tube steel frame unit
Includes three 71 3/4in.L x 29 3/4in.W plywood platforms with steel-reinforced edges for safety
Versatile platform heights adjust in 2in. increments using the convenient spring-loaded locking lever
12 double locking 5in. caster wheels with locking pins offer mobility