The Roc and Whale are two offstring yo-yos designed by Taiwan's Adegle yo-yo company. These two models differ only in weight; the Whale is slightly lighter at 71.0 grams and thus has the edge in speed. Both the Roc and Whale feature the hourglass shape that has come to characterise Adegle's yo-yos.
Important: this is an unresponsive modern performance yo-yo. Unlike classic yo-yos, unresponsive yo-yos do not come back with a simple tug of the string. You need to perform a trick called a "bind" to create enough friction inside the yo-yo to make it return smoothly to your hand. Learn more.