3-part curtain strip has middle part that is movable with cut surfaces at 60 degrees and three running grooves; entire strip is manufactured from wood or a related synthetic material

摘要

The device is in three parts, the middle part is movable with cut surfaces at 60 degrees and three running grooves. The entire strip is manufactured from wood or a related synthetic material. The cut surfaces of the middle part and the inner edge of the left and right strips are angled at 60 degrees.