●4 x Thin Jacks (Diameter 2.0 - 4.5 inches (5 cm)) ●Note: Please note that assembly is done by one person, but installation is done by two people ●4 tall casters (4.5 inches (11.3 cm)) ●4 x 2 panels (3 cm) thickness ●8 x Mouth Type Steel Tubes (Stainless Steel) ●4 x Exclusive Anti-Vibration Pads ●【High Quality Material】1. Panel: Made of ABS. 2. Increasing casters: metal 3. Jack: stainless steel + PP 4. Steel Tube: Stainless Steel 5. Exclusive anti-vibration pad