4 pictures , comics style, representing the same UPS worker doing the 4 steps for lifting a heavy box, while bending his knees and keeping straight his back. He's wearing a yellow safety jacket, gloves and safety shoes. - On the first picture, the he's standing at the front of the box, in profile. The box is on the ground - On the second picture, he's bending his knees to take the box on the floor, - On the third picture, he's lifting the box, while keeping his back straight - On the last picture, he's standing with the box in his hands.No background