They are light and the plastic slides well. the clear plastic works better than solid black plastic like PLEGS or Animal Butcher sleeves. They also are more durable and dont crack easily
Nothing really you have to keep rotating them so its annoying
they are a bit expensive i went from these to metal Tree pegs. I still think these are good for street if you wax ledges and are perfect for a late night sesh so you dont get caught by rent-a-cops.