structural:summarization
Unresponsive (1A)

Eventually, wider string gaps and silicone response systems led to the innovation of unresponsive yoyoing, otherwise known as 1A. Traditional yoyos (responsive) would return to the hand when one would tug on the string, but unresponsive yoyos behave a little differently. Instead of returning to the hand when one tugs on the string, one has to perform a trick called a "bind" where the string is doubled over inside the string gap to increase friction on the response system. This has brought about innovation of many different kinds of tricks involving leaving slack in the string, as this would have caused a responsive yoyo to return to the hand. This style of yoyoing is the most popular and the most common, and the most yoyo tricks are done with 1A yoyos.