"G" bird 重心鳥

逼真小寵物鳥, 停在你的手指頭
The "G" point of gravity is just on the mouth of bird, place the bird on head, table , stick end, pencil end, etc can hold the bird freely, very miracle !! Help the student to learn the nature of "G" point of force. Supplied with a T holder
Itemno : GBI8008

@@@ KELAB 嘉里達科儀教具 www.KELABHK.com @@@