Step1: Prepare materials: carton box , pen, magnifying glass, glue, knife,Piece of cardboard
Step2:Use a pen to draw a circle along the side of the carton along the magnifying glass, then cut it with a knife
Step 3:Apply glue to the side of the cut outline, stick the magnifying glass along the outline, take out the cardboard, place it on the box, and cut out the corresponding size according to the size of the box.
Step 4:On the lid of the carton, according to the position of the magnifying glass, cut out the corresponding contour and place the magnifying glass on the contour.
Step 5:Search the video with your mobile phone, place the phone on the cut cardboard, cover the paper cover, turn off the light, and you can watch the video.