1, Square Tube : 19 mm
2, Stainless steel wire: 3.0 and 5.0mm
3, Gap between tubes of walls: 15mm
4, Gap between tubes of bottom : 15mm
5, Hinges: stainless steel shaft hinges
6, Wheels: Quiet Rubber wheels, stainless bearing- 360 degree rotating and whole brake
7, Full TIG welding for 2 sizes
8, Resin Trays