Replaceable upper part Concave shoes shaped and with no bolt upper part will be provided. It can be used or not as occasion demands. Bolt-shaped can be purchased for good measure and it is replaceable.
Ceramic ball Each layer shows flexible moving with three zirconia.
A three level layer Three level layers with double controlling structure make natural attenuation of vibrations by preventing counter transference.
Stainless steel We add density of medium sound comparing to aluminum, weighing 2.5 times more than aluminum.
Center of gravity A gravity center that spike is placed, is has low center. (It is even lower than 9mm.)
Pyramid structure A Stable pyramid structure(not vertical shaped) makes maximum load lager and gives great stability.