It cost 70 or 199 in the Small and Big Gifts. However, as the Gifts were updated with new items, the Blue Skateboard is now unobtainable unless through trading.
Being a vehicle, this item is designed to make getting around the Adoption Island an easier task.
The Blue Skateboard features an all-blue skateboard with four wheels. Its neon counterpart is the Neon Blue Skateboard. However, the Neon Blue Skateboard glows whereas the Blue Skateboard does not.