Multi Functional Door Closer Automatic Door Close ninety Degrees Position Hinge 4-inch Buffer Rebound Device Spring Invisible Hinge Model:90 diploma positioning spring hinge Specifications:Silver, Black, Gold Material:stainless metal Surface treatment:electroplating Applicable: cabinet doors, wood doors, furniture, and so forth The variety of matching hinges for every door is as follows: Door peak 900-1950mm or door weight 40kg:It is suggested to install 2 pieces. Door top 1950-2300mm or door weight 40-60kg:It is suggested to install three pieces. Door peak 2300-2800mm or door weight 60-80kg: 4 items are counseled for set up Description: * Multifunctional newly upgraded three-in-one function, integrating return spring/door closer/door suction * ninety ° is the location state. When the door is opened more than 90 °, it will be fixed by means of hidden metal balls to form positioning * The positioning bead fixing could be adjusted consistent with needs, and the 2 positioning beads are stuck in the groove of the page * The strong spring is designed to mechanically close the door. After positioning, the door would be restored automatically. * Removable core, thickened and durable, thickened and thickened shaft core, could be disassembled at will * The door frame and the door are at the similar plane, and this hinge does not distinguish between internal opening and outer opening. Your door and door frame can be utilized in the event that they are on the similar plane. Notes : 1. Manual measuring, please enable 1-3mm error,thank you. 2. Due to the variation between varied monitors, the picture might not reflect the actual colour of the item. We warrantly the fashion is similar to shown within the picture. 3.Due to long shipping, the thing may well injury in transit, if the item damage, plase contact us in the beginning immediately before go away feedback, thanks on your under.