Bad design. Because, when push up the slider in pen drives with sliders, our thumb is on the slider and middle finger and ring finger hold the lower back end of the pen drive and then thumb pushes up the slider. But with the design of this pen drive, when we push the slider up with thumb, middle finger and ring finger hold back the slider from going up.
Not only that. Slider is stiff and not smooth like Transcend’s slider pen drives. I use both hands to push up the slider, i.e., hold the pen drive in left hand and with right hand thumb, push up the slider. I regret buying it even though it is USB 3.