There is no governing body that declares any regulations on what constitutes a skateboard or the parts from which it is assembled. Historically, the skateboard has conformed both to contemporary trends and to the ever-evolving array of stunts performed by riders/users, who require a certain functionality from the board. The board shape depends largely upon its desired function. Longboards are a type of skateboard with a longer wheelbase and larger, softer wheels.

Shock pads are made of polyurethane and rubber. They are very similar to risers but vary in the fact that their sole purpose is to cushion the board from the trucks. Since the trucks are metal and the board wood, whenever the board hits the ground after doing a trick, the energy goes through the truck to the board ─ this has caused boards to crack, split, or even break in half, and shock pads were created to prevent this.
Bolted onto the underside of the tail end of a skateboard, the tail guard (also known as a "skid plate") protected the tail end from skid stops and other maneuvers that would otherwise wear away the wood (commonly known as razor tail) and decrease the longevity of the tail. Typically made of plastic, these were widely popular in the '80s but their usage quickly diminished with the arrival of two-tail board designs, which became increasingly popular in the '90s.

But there isnt a magic key or secret. Skateboarding is suprisingly a lot of brute force. That is, there is no magic secret, it’s practice practice practice. If you wanna learn any trick, keep trying that trick. There are of course proper techniques and improper, but theyre nigh impossible to describe effectively. it’s all about feel and a lot of tricks defy description.
There are other types of ollies that you can do either alongside or combine with the ones listed above, like the tailgrab, indy grab, melon grab, stalefish, tweak, and dolphin nose. All of those skateboard tricks are performed more or less how they sound, but you might want to watch some videos on youtube to see a pro in action (as well as awesome cat videos).
The problem with wheel bite is that it tends to stop the motion of the wheels. This can result not only in a bad wipeout for the rider but also damage to the wheels. With the help of the riser pads, it is easier for you to preserve the deck of your skateboard since these pads can reduce the tendency of having stress cracks on where the trucks and deck meet.

Smile and wave – Feel free to look around at all the other people at the skatepark that stood by and marveled at your new-found accomplishments (all one of them). I’m sure by this point you’ll be picking up roses that are being thrown at your feet, and taking a well-deserved bow as they begin to chant your name. Take it all in, thank the crowd for their undying affection, and then go get a snow-cone. You deserve it, champ.