Speaking of this, some candidates must have started to worry about how to buy plastic rubber or confirm whether the one they purchased is plastic rubber. The editor here briefly distinguishes the types of rubber for everyone.
Brown, pink, and black drawing erasers are specially used for 2B, 4B, etc., and are basically rubber erasers. Soft and will appear opaque against stronger light sources. The more common ones on the market are Korean brands and Marley brands. Although it is labeled "Special Drawing", it is still favored by students because of its comfort and good erasing effect (it does not refer to the effect of erasing carbon, which can only be distinguished by the naked eye). However, the eraser scraps after erasing are relatively long and difficult to deal with. Slightly inconvenient.
Another type of eraser commonly used for sketching is plastic eraser (soft eraser). As the name suggests, this eraser can be freely shaped and is the softest in the eraser family. Not suitable for daily writing.
The plastic rubber that students are most concerned about is actually easy to distinguish. This rubber has a strong plastic feel due to its polypropylene base.
When placed under a strong light source, it will appear translucent. When erasing, the eraser scraps generally do not form into strips, but into small sections or close to granular shape. As shown in the picture, this is a high-end drawing eraser clearly marked "PLASTIC ERASER". Students who are really worried can try to buy this clearly marked eraser (but please also try to ask the store owner for the safest information. choose). Some "flower rubbers" available for children on the market are actually a kind of plastic rubber, but they are really "embroidered pillows". They look good but are not practical to use. It is not recommended to use them, especially for answering questions.
There will also be a more detailed introduction in the "Types of Erasers" at the bottom of this page, but the above introduction uses relatively simple and popular words to answer the parts that are not covered below.
Of course, there are many types of erasers on the market, most of which are specialized, so I won’t introduce them one by one here.