DIYHD 39-3/4" Stand Up Black Rolling Library Hardware,Telescope Sliding Top Roller,Floor Roller with Brake(No Ladder)

Material:Steel + Aluminum,Surface:Rustic Black | Only hardware,not including ladder | Full set hardware including:39-3/4" track with 2 bracket;Tensible wheel*2;Stop*2;End cap*2,Floor wheel with brake*2 | Hollow Track Thickness:2mm;The brackets were welded together with track;The length between two brackets is 19-11/16" | Tensible roller,the ladder can be stand up when not working