Rosco WindowCling #8603 ND3

This range of ultra-thin filters is designed to temporarily attach to windowpanes via static electricity to control the light coming through the window. 
 
Available in three different neutral densities (ND3, ND6 & ND9) and a unique Day For Night Layer (D/N) – these filters are designed to stack on top of each other in order to achieve the necessary brightness level as lighting condition change outside.