@GB 100% New And High Quality Material: Zinc alloy A Size:Length: 3.8cm, diameter: 1.8cm, with an error of approximately 1cm1cm B Size: Lock core length: 3.2cm, diameter: 2.5cm, iron plate length and width: 4.5 * 1.5cm, hexagonal length and width: 2.5 * 2.5cm, with an error of about 1cm C Size:Total length: 13.8cm, with an error of approximately 1cm D Size:Diameter: 4cm, height: 3cm, length and width of iron sheet: 5.5 * 1.8cm, with an error of about 1cm Conversion:1inch=2.54cm, 1cm=0.393inches Warm Tip :Please be reminded that due lighting effects, monitor's brightness/contrast settings etc, there could be some slight differences in the colour tone of the website's photo and the actual item. Item Measure by hand, it could be 1cm different,your kind understanding will be much appreciated.