Bottle patent

You must pay attention to the selection of color-changing cups. I study applied chemistry in college. Let me tell you from a chemical point of view, that is, there must be no color-changing substances two centimeters below the edge of the cup. That place is where the mouth touches and it will be poisoned. This is chronic poisoning, you know. Although the color-changing components of various color-changing cups on the market are different, they all contain heavy metals, you know. Therefore, when choosing a color-changing cup, you must choose the one with color-changing ingredients in the middle and lower part of the cup body, and the cup edge must not be there.

You can also see what he likes according to his personality. But most boys like it. It is innovative, useful, funny, creative, do it yourself and can surprise people. I'll briefly introduce you to a few.

1 roller coaster second-class fun toys (toys in the movie Liu Qingyun played, educational)

2 creative automatic LED light-controlled bookmark desk lamp

Electronic infrared air guitar popular in Japan and South Korea (highly recommended, amazing, can play without knowing much about music).

4 Carzor card convenient ultra-thin portable shaving/shaving knife

5 creative inverted beer bottle modeling goblet wine glass

6 patent genuine creative flat-bottomed omelet pot clock wall clock

7 Canon's fourth-generation stainless steel liner lens cup Guo Xuwei mug

Eight fashionable deep-sea walking can pinch energy-saving jellyfish nightlight.

9 inverted text cups and stacked music cups (this is the most creative cup I have ever seen, and you will love it as long as you look at it).

10. Touch brightness adjustable myopia prevention LED eye protection desk lamp (Angry Birds)