Most skaters are probably going to tell you Spitfire Wheels.
Reds and Swiss Bones
The most dangerous trick is a 900 spin
You use a GX Skateboard by putting the rip cord inside the wheel slot and then pull it really quickly! The wheel spins very fast and as you let go or put it on the ground, it will skate on its own. You can buy separate playsets with them or you can make most of them by yourself. You also get a deck plate where you put in the skate board and you can also finge borad as well. I recomend the Gx Skate to you because it has "electric" type of skate boarding and you can fingerboard as well.
about a mm but it makes a difference. If you ride super loose then bigger wheels will cause more "wheel bites" which is when the wheel hits the bottom of the board. I ride pretty loose so I like smaller wheels but its all in preference and what type of skating you will be doing most often.
A skate board is typically a small wooden board with 4 wheels, used to perform stunts on land and is powered, in most cases, by being pushed along by the person riding it, a surfboard, however, has no wheels and is used most often in seas, oceans, or other large bodies of water, to perform tricks.
Either can be used, but grams would be the most practical.
Most wheels are simply urethane added to an existing skate wheel. Made out of a durable material.
The most appropriate unit is a centimetre, though a metre to two decimal places is exactly as accurate.
you can get enjoi boards at most skate shops. have you tried looking online. i think rollersnakes have a few in stock "www.rollersnakes.co.uk"
Most skateboards dont use metal, but the only skate board brand that I know is Darkstar armorlights but it is just metal mesh.
there is only a couple of ramps for ten dollars or under most good ones are more expensive.
buy him a skate board. throw him out of the house if he is mean (which most are, not gonna lie to ya)! and say "here's a skate board" problem solved!