1.	Outer tube: Used STK - 500 carbon steel tubes as materials for structural purpose. Dimension: ø60.5 x 2.3mm
2.	Inner tube: Used STK - 500 carbon steel tubes as materials for structural purpose. Dimension: ø48.6 x 2.3mm
3.	Base Plate: STK - 410 steel plate its 6mm thickness and outer tube by firm welding.
4	Screw: Used JIS G 3452 grade threaded pipe of it's ø60.5 out dia. and 3.2mm thickness. It had slot hole which was able to through it by the pin, and was welded at outer tube.
5.	Adjusting Collar & Handle: Used STK - 41 carbon steel tubes and had a bracket for jointing between the handle and the collar.
6.	Pin Collar: ø12 round bar.