<p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left">product description</p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left"><br/></p><p style="font-family:Roboto, -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Oxygen, Ubuntu, &quot;Fira Sans&quot;, &quot;Droid Sans&quot;, &quot;Helvetica Neue&quot;, &quot;sans-serif&quot;;font-size:14px;font-weight:400;letter-spacing:normal;line-height:1.7;text-align:left;white-space:pre-wrap;color:rgb(51, 51, 51);background-color:rgb(246, 246, 246);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box" align="left">Aluminum foil card sets are made of software electromagnetic shielding material --- &quot;aluminum foil&quot; made of its function to eliminate electromagnetic interference (EMI) interference, shielding electromagnetic radiation on the IC card damage. At the same time with airtight, light, anti-static, anti-RF function. the main function: 1, to prevent strong electrostatic interference 2, to prevent strong electromagnetic field damage 3, to prevent others from malicious theft, stealing your personal information 4, to extend the effective use of smart cards size:6.3 cm*9.1cmTips:Note. Different monitors or screen may indicate images differently. Thus, there may be a bit difference between the real color of the product and that shown in the screen.Due to different producing batches,there may be deviation of 1-2 cm for items.</p>