|White Strength Seal|
A seal developed by Tsunade that is reputed to be the pinnacle of chakra control. By storing chakra over a period of time, the user creates a seal on their forehead which keeps the chakra undisturbed for future use. Once the seal is formed, the users already impressive chakra control allows them to perform techniques without any wasted stamina or chakra. When released, the stored chakra goes back into the body, greatly increasing chakra flow.