tech app 03

What is it:Lu has a modified spear which has the base length of 8 ft she had modified it so it'll be able to shorten itself out but is unable too extend any further. The modified spear just uses basic retracting mechanism which can shorten itself to 4 and a half ft that being a long-swords length. It is composed out of primary out of steel and iron.The iron is used for its sturdiness and hardness while the steel is used to provide structural support and toughness(I think we all know how retractable mechanism works here). Mainly around the handle has a button which is used to retract the spear in or out. For the body of the sword it leather strapping's that rings around the handle region assisting with keeping a good grip, while the color of the spear is mainly dark grey and a silver color which is found on the blade.
The spear strength is how quickly it can swap roles allowing it to swap back and forth from its spear length to its long sword length
its main weakness is pretty obvious it sacrifices range, flexibility, etc when it switches to either length settings.

Here is what it'll exactly look like, http://prntscr.com/9qyr5r except its not gold but a dark grey.
What character is it for?
How was it made: It was made via collecting all the parts and materials that were needed and assembling it into a spear
Why i should have it: Generally this is a very simple mechanism, and i am probably not going to able to make it till another week or so(probably two weeks unless i have someone provide me the materials to make it). It is also my first app THAT ISN'T OVERLY OP its actaully pretty basic.