4.Parameters3.Usage WayDouble-hand foldable set can be used in many ways, such as positive holding and reverse holding. Turn positive holding to reverse holding as shown in the following, in positive holding, both hands hold the hand grip, began to rotate, turn to 90 degrees, alternating hands, continue to rotate 90 degrees, to the back of reverse holding.426.2mm93mm171.4mm128.5mm211.5mm3 positive holding90°reverse holding