Composition: Adjusting rings acc. to ≈ DIN 705 A with socket set screw acc. to DIN 916 Stainless steel A1 Contents: 6x12x8 / 8x16x8 / 10x20x10 / 12x22x12 / 14x25x12 / 15x25x12 / 20x32x14 / 25x40x16 / 30x45x16 / 36x56x16 46 pieces