Look no further. Excellent product quality， that's solidly built. Best of all， its very affordable price. Buy this instant.<br />Head diameter: 16 mm <br />Overall depth: 35 mm<br />Material: Aluminium alloy<br />With two keys<br />Note: the keys can be fetched out of the lock under any state. <br />1 x Lock <br />2 x Key<br /><img src="http://img6.eachbuyer.com/x13/p19/ba012_1.jpg" / noproxy>                                                        <img src="http://img6.eachbuyer.com/x13/p19/ba012_2.jpg" / noproxy>                                                        <img src="http://img6.eachbuyer.com/x13/p19/ba012_3.jpg" / noproxy>                                                        <img src="http://img6.eachbuyer.com/x13/p19/ba012_4.jpg" / noproxy>                                                        <img src="http://img6.eachbuyer.com/x13/p19/ba012_5.jpg" / noproxy>                                                        <img src="http://img6.eachbuyer.com/x13/p19/ba012_6.jpg" / noproxy>