Silca Ultralite Keys are made of titanium alloy, the same light and durable material used for the construction of airplanes. Titanium is as strong steel, but 45% lighter in weight, compare to aluminium, it is 60% denser but more than twice as strong. Do not mistake it for the cheap versions in the market which are made of aluminium and are easily bent and broken. Available in 7 bright colours: red, green, blue, yellow, black, sky blue, violet. You can tell which key is for which door without the need to tag them.
Get Ultralite instead of normal brass keys and make your pocket lighter!