Push to open slide,single extension slide,push drawer Passed SGS test for 50,000 open-close Seft-lock closing adjustable LENGTH:300/350/400/ ... , push the drawer inwards and press it once, then it will be easily locked. It is not necessary to install any drawer pull ... .Packing: 20 sets/casePush slide,two fold slide,push drawer,Pass SGS test for 50,000 open-close. ...