Standard seat height 1: 47-54 cm with a flat base, special seat height 2: 50-57 cm with a high base, special seat height 3: 51-64 cm with high gas spring and high base. Base polished aluminium. Black, synthetic castors for hard and soft flooring. At an extra charge die-cast zinc castors for hard and soft flooring. Dance measurements: width 67 cm, depth 67 cm, height 97-104 cm, weight 22 kg..