Abstract: A shakable push button pen includes a stopping ring respectively disposed on outer circumferences of front end and rear end of an inner sleeve, a slidable load ring arranged between the two stopping rings, and a shaft extending backwards, assembled with a ratchet on rear end of the inner sleeve. The shaft inserting through an inner hole of a ratchet on the button is threaded with a sliding ring that is slidable inside the inner hole. When the pen is shaken forwards, the inner sleeve and the button are driven to slide forwards by momentum of the load ring that runs into the front stopping so as to make the refill extend or retract. Thus the push button pen can also be used as a shake pen.

Abstract: A method of forming a soft casing sleeve having multi-colored and raised decorations is provided.

Abstract: A retractile pen includes an outer barrel and an inner barrel axially slidably received in the outer barrel. The outer barrel is provided with two axially spaced and aligned stop holes and the inner barrel is provided with an elastically depressible button adapted to partially project from either of the stop holes. By engaging the button on the inner barrel with a different stop hole on the outer barrel, the pen can be adjusted to either a longer length to facilitate writing with the pen or a shorter length to facilitate convenient carrying of the pen.