Abstract: An off-road specialized jack having features making it more able to perform its function in off-road environments. Jacks of the inventive subject matter can include a skid plate, large diameter, non-pneumatic wheels, and, in some embodiments, a lift extender to facilitate lifting high-clearance objects or vehicles. The lift extender can be removably coupled with the jack, and its height can be adjusted according to a user's needs.

Abstract: A modularized push button switch of which a main body has a plurality of exposed metallic pins in a front and a rear line, each of the pins is connected with a signal line; a unitary insertion connecting module is provided on a connecting end of the signal lines, the unitary insertion connecting module has inserting holes respectively facing to the metallic pins in the front and the rear lines. Thereby an improved modularized push button switch is formed that has the advantages of effectively preventing the metallic pins from damage, rendering accurate of wire connecting and resulting better quality of the push button switch, and having firmer as well as more reliable structure after insertion assembling.

Abstract: A modularized switch connector having a shovel shaped insulating housing formed integrally, the housing is shaped in matching with the shape and contour surrounding a first and a second electrically connecting pin as well as a grounding electrically connecting pin of a micro switch. The housing is formed thereon a first and a second through hole, and is formed on its lower forwardly protruding portion a third through hole. The rear end of each hole allows inserting of an electrically conducting jack with a “U” shaped section therein. The front end of each through hole allows inserting of an electrically connecting pin of the micro switch; so that the first and the second electrically connecting pins of the micro switch can be connected with two electrically conducting jacks in the first and the second through holes, while the grounding electrically connecting pin can be connected with the electrically conducting jack in the third through hole.