Square M

icf-solid icf-square-m

<i className="icf-solid icf-square-m" />

Unicode: 
Hex: \e24c
HTML Entity: 

.my-icon::before {
    font-family: "Iconfyra Solid";
    content: "\e24c";
}

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" fill="currentColor">
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</svg>