Each pack contains 40 dots, but approximately 4-8 dots have been used. (The used ones for jade and tiger ice have been discarded, so they each have 36 dots.) Therefore, please consider that you can use 36-32 dots each in perfect condition! The order of mouse skates' glide speed from fastest to slowest is: jade jade air obsidian obsidian air obsidian pro air ※tiger ice is considered to be similar to jade and jade air.