Material:stainless steel tube and base mute universal wheels. Size:outer tube:Φ32 Inner tube;Φ32. Base diameter 46m, Height Range:1.1-2.1m. Packaging:5pcs/carton.. Product features: 1.The base use mute universal wheels 2.ABS original material parts 3.Multifunction pallet fits all kinds of pump 4.With Pneumatic Cushioning Device