Handwritten version of the scroll copy: the production method is to select high-quality white paper (best to buy in the copy store, 20 yuan 500, enough to do your whole life of the cheat sheet), the quality of this paper is better than the print out of the paper. Users will write the content they want to use in the roll copy, the length of the roll copy is best between 20 centimeters and 25 centimeters, too long if the volume is relatively large, affecting the operation of the feel. Then the cheat sheet carefully rolled up, repeated roll 2 - 3 times, the next day to get up and then repeated once can be molded, this kind of roll roll copy suitable for people with flexible fingers. The method of use is to use the thumb or forefinger to press the end of the roll roll copy, with the other finger to dial send, dial send length of 5 centimeters is appropriate, this part of the look after sending

open finger, the paper roll will be because of the elasticity of the automatic recycling, and so on and so forth, the contents of a long strip can be between the two fingers with a 5-centimeter "body" to show the end of the. And this cheat sheet can be in the teacher suddenly came down, quickly back to your hand, a higher coefficient of safety.