Hinged Panel Sets and Centers are laser cut with rounded corners
from .25" Unisub hardboard and have black backing. Each piece of a
Double set is slotted on one side to accept hinges. Hinged Centers
are slotted on both sides to be united with Double sets. The Hinged
Double Clock Kit includes clock motor and hands. Each Hinged Double,
Hinged Pair or Hinged Center includes two hinges. Each Hinged Tri
Panel includes four hinges.