Tangent Screen 18" Wand and Six Piece Test Objects
Tangent Screen 18″ Wand and Six Piece Test Objects
Flat test objects of various colors and sizes are mounted on non-reflective washable vinyl with a black felt background and pin shank for use with tangent screens.
Test objects are inserted into the fabric leaving only the object visible. Half turn rotation obscures the test object behind the wand. Alternating the rotation, objects can be made to disappear and reappear for confirmation response.