Buying scooter griptape
The purpose of griptape for pro scooters is to have better grip & control of the deck. Grip tape is like a big sticker with sandpaper on the top.
Grip tape has to be changed on a regular basis, either when worn out, so there's no more sand or when big parts of it is missing. Water and moist will shorten the lifespan of grip tape dramatically.
Most of the grip tape you buy at SkatePro is pre-cut for pro scooters in a universal size, but some are made for skateboard, these have to be cut out by yourself.
Remember to remove any old grip tape and clean the deck thoroughly before applying new grip tape.