What material its made of and how it works
I would suggest we play a game called, Delete those videos from your phone. Srsly.
The only other source would be a salvage yard. There are many who make their entire parts inventories available online. Best of luck. I hope this helps.
Anyone giving you a definitive answer is doing a disservice. Either art works provided the training methodology and quality of instruction is there. Some people will quote Bruce Lee as he felt Wing Chun was ineffective after his first street fight. But that was one person. Truthfully any will help with ONE aspect of self defense (being hand to hand), if trained properly and in an alive manner. Which means a high level of sparring is included. I do not mean push hands, or one or two man drills and dead patterns (things that are done repeatively in the air over and over again). I mean at some point, taking safety in mind for your partners you suit up or don't suit up, and you both go at it, attempting to use your technique against a trained resisting opponent who is trying to do the same to you. People will often say Muay Thai over Wing Chun based simply on MMA, or what they think is popular or have heard. Some people will say it mainly because of training methodology. In Muay Thai you are going to get hit in training a lot. You are going to do a lot of hitting, but you will spar hard, early and often. Whereas that isn't always the case in Wing Chun schools. You can't train Muay Thai if you only hit a bag. You can't train Wing Chun if you only use the wooden dummy and push hands. Bags are useful tools, so is the wooden dummy. But they are conditioning tools. You need to hit and spar with real live moving people to develop timing, accuracy, and the ability to react. Backs and dummies don't hit back. Skulls are harder than bags and wood. If you want competent fighting ability you have to simulate a fight as close as safely possible. Just my two cents. Any art, system, or style can be practical if trained correctly. Trained correctly you find the ways to make it work for you. Don't let anyone tell you one style or another is more practical than another. Because it isn't the style, it is the training methodology.
WC is very practical. In fact WC is used by the millitary, and the NFL. Lots of other places too. It's not as prevalant in the millitary because it's an internal art and hard to master unlike Muay thai which is very external. Anyone can do it.
