Specially designed throwing knives are durable with a well-balanced distribution of weight to assure uniform rotation when thrown properly.
Throwing knives normally have ergonomic gripped handles which help guide your hand into the same consistent and accurate release each time it is thrown.
Length and Balance: The rule of thumb is that the knife should weigh 1.5 oz for every inch in length. The longest throwing knife you can find is about 12 inches and the shortest throwing knife is about 6 inches. The heavier the knife, the more impact it will have on the target.