You are purchasing a 6-count lot of laser cut O Scale wood ladders fabricated by Todd Architectural Models & Layouts. Each ladder measures 10" x 7/16". The ladders are laser cut from 1/16" thick 3-ply birch plywood.
 
The stock number is O-Ladder2.
 
Cut the ladder to length using a sharp hobby knife or chisel blade.
 
An extension ladder may be easily created by stacking one piece the front of another and affixing with Tacky, white or wood glue.
 
Birch plywood material may be brush painted with the acrylic color of your choice