This item is a Vintage Expandable Wooden Accordian 13 Peg Wall Hanger Mug Coat Hat Jewelry Rack.  Pegs measure about 1 3/4" long & rack measures 11" tall x 4" wide closed  and 24" Wide  x 9" Tall opened.  Pegs measure 1 3/4" LONG AND 3/4" across the tip.

Wood slats on the rack measure about 1/4" thick to make a sturdy rack.  Metal hangers on the back to hold the rack in place.

In nice condition and hangers on back for easy hanging.

Natural wood color stain.  Could be painted to match your decor.