Enchantment of Returning and Speed

When put on an item, any time that item is thrown, it will fly back into that character's hand if reached out. If their hand is not reached out it will hover around them until grabbed by the character. When this item is thrown it doubles the speed and range. For example let's use a dagger. Let's say a character can throw a dagger at 20 mph 10 meters in front of them. With this enchantment on it, they can throw it 40 mph, 20 meters ahead of them, and it'll come back to their outstretched hand.