Manually height adjustable aluminum seat pedestal with 360º swivel only. Anodised base.Other Details: Type Height (H) Hole pattern Pedestal Ø(D1 / D2) Base Ø (D3) Weight (kg) PCM3040 300 - 400 S 60 / 73 228 4 PCM3547 350 - 470 5 PCM4363 435 - 635 5,8