You can get them at prowood fingerboard or flatface fingerboard.
Tech Deck is a brand of a fingerboard. Fingerboard is a name of games.
Online fingerboard shop from Poland www.mittskateboards.com
www.zshred.com you get the best fingerboard stuff for a great price
You can use three fingers but it is harder to do tricks and you are supposed to fingerboard with 2 fingers as a skateboarder would use 2 legs.
flatfacefingerboards.com
BlackRiverramps.com
www.zshred.com or www.yellowoodstore.com
o:
More information is needed as to the purpose of the holes, and what a 'fingerboard' is .
you do it the same way you do it on a real skateboard. except its your fingers. pop the fingerboard with your middle finger then slide your index finger to the other side. practice slow then when you got the hang of it do it fast. there you go an ollie on a fingerboard. TADA
To improve your fingerboard technique on the guitar, practice regularly, focus on proper finger placement and hand positioning, and work on exercises that target dexterity and coordination. Additionally, learning scales and practicing them in different patterns can help improve your fingerboard technique.