1、Made of high-quality rubber, soft and elastic, it can easily blow off surface dust. 2、Use one-way valve, air intake and outlet are not on one side. Front air blowing, back air intake and out air are not the same port, so the possibility of secondary pollution of dust is completely avoided. 3、A wide range of applications, such as mobile phones, computers, glasses, cameras, keyboards, SLR lenses, etc. 4、Super soft, non-toxic, high elasticity, comfortable to touch. 5、Compact body, easy to carry and store, convenient to operate. Features: 1. Made of high-quality rubber, soft and elastic, it can easily blow off surface dust. 2. Use one-way valve, air intake and outlet are not on one side. Front air blowing, back air intake and out air are not the same port, so the possibility of secondary pollution of dust is completely avoided. 3. A wide range of applications, such as mobile phones, computers, glasses, cameras, keyboards, SLR lenses, etc. 4. Super soft, non-toxic, high elasticity, comfortable to touch. 5. Compact body, easy to carry and store, convenient to operate. Specification: Color: Blue Material: Rubber Weight: about 20g/0.71oz Uses: notebooks, computers, digital cameras, mobile phones and other equipment Product Size: about 9*3.9*3.9cm/3.54*1.54*1.54inch Package List: 1 * Remove Dust Ball