It's a neat piece of science art, and it also tells us something interesting. The arrows show us that the force on the skateboard is constantly changing, both in magnitude as well as in direction. Now the force of gravity obviously isn't changing, so the reason that these force arrows are shrinking and growing and tumbling around is that the skater is changing how their feet pushes and pulls against the board. By applying a variable force that changes both in strength and direction, they're steering the board.
The laws for skateboarding helmets vary from state to state. Many states require that skaters wear a helmet under a certain age, and some states like California make all skaters under 18 wear a CPSC Certified helmet at all times. CSPC skateboard helmets usually have an EPS protective liner that meets the safety standards for skateboarding. Make sure you check your state's regulations before ordering.
Punisher Skateboards Warphant measures 31 x 7.5 inch.  It has a 9-Ply Maple Black Board with Concave Deck and Double Kick Tail.  It comes with ABEC-3 Bearings, 5-inch V-style Heavy Duty Alloy Trucks, and Bases.  It uses 54 x 36 mm PU injection molded wheels and PE Riser Pad with PU Cushion and Punisher Logo.  It is perfect for learning and doing tricks.  It is best suited for riders who are 8 years old and above.  It has a 5 rating on Amazon.

Almost every skate shop will have a wall of boards that is either organized by brand, size, or alphabetically. At our CCS skate shop, we have multiple walls of boards that we try and keep ordered alphabetically. A wall of skateboards, at first glance, can be overwhelming, but if you know what size and roughly what brands you like, it should be fairly easy for you to figure out what board you want. Now would be a good time to mention our CCS Skateboard Buyer’s Guide, specifically the Decks Guide. In the CCS Decks Guide, you’ll find all the information you need to gain a basic understanding of skateboard decks.
GREAT board. Great design graphics. The boards deck has a real POP to it that makes it GREAT for tricks and a AWESOME beginner board. Only problem is It's super slow and requires a lot of work to maintain speed or to pick up speed period. A simple $20 wheel barring upgrade will fix that and BOOM PERFECT board, PERFECT caved in deck. Only 4 stars because of the lack of speed. I prefer my boards ready out of the box already pre-upgraded, but for the price, no point in complaining. Like almost all new boards, u have to ajust the wheels and the flex of the board to customize it to your liking. You won't regret it. But order it with some "Lucky" or "Red bearings" and your set.
This board is an excellent option for beginners because of its simplicity and durability. The lightly concave design allows for simple turns but doesn’t require the rider to be an excellent navigator. You can start off riding this deck down the street and use it as you learn ollies, kickflips and how to drop in to a half pipe. It will withstand it all and look good doing it. 
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