DescriptionMade of aluminium alloy, high quality, solid and durable, and healthy, not easy to aging. Not easy to be folded or bent, smooth and flat. The metallic business make your identity distinguished, and look elegant.Features-Material:Aluminium alloy -Size:7.90X4.90X0.10cm/3.10X1.93X0.04in -Light and never rust, a good tool to give out at the first meet. -It has excellent quality and exquisite workmanship, suit for your various demand. -Since it's metal and looks good, the receiver is more willing to keep it. -Exquisite Workmanship,Make your Identity Distinguished. -Used for Engraving Machine Test and Heat Transfter.