The base is attached to the spin gear using a screw. The base is thin and flat.
Takara's base has two spikes at the side which allow it to be attached to the dragon figure as Johnny used the beyblade in the TV show. However the beyblade cannot be launched this way and therefore Hasbro redesigned it to have these dragon parts be attached to the top to prevent confusion among players. The pegs are fragile and may break in battle.