The nest box is satisfactory. Suspension and closure bending sheet metal in the meantime from non-rusting materials. Inserts for variable hole sizes are still missing. Here Schwegler has learned nothing. The material (wood concrete) is very porous and crumbly. Large parts broken out after a short time. The outer shell is also very full of holes and wets after rain very strongly. Here help the recoating with brown color and nothing more. The quality is poor, in our view. We have disposed of it. Was a bad buy.