A set of five black-finished machined parts: four contoured, handle-shaped bodies with a knurled band, and one stepped cylindrical part. The four bodies have a waisted profile and flat side faces; one of them carries an oblong slot with a small hole above it, set into a recessed pocket. The fifth part steps down from a wide base to a narrow grooved top, with cross holes drilled through the upper stem and near the base. The black finish is even and matte across all five parts.