Product Name: New Zinc Alloy Style Quick Release and Soft Close Toilet Seat Hinges Model NO.: UIC-BH021 Material: Zinc Alloy/ Chromed Feature: Slow-Close or Normal Suitable Toilet Cover Match: PMMA/MDF/Wood/Resign Torque Range: 0-10n Biggest Action Angle: 115 Weight for Toilet Seat Cover: 3 - 4kgs Export Markets: Global Transport Package: 36sets/Carton Specification: TUV Origin: Zhejiang, China HS Code: 8302100000 Product Description Soft closinghinge for toilet seat:1) The lid closes softly and silently, all by itself.2) Light touch silent, no collision niose.3) Almost weightles, smooth & steady.How to choose the hinge for your seat cover?pls find the website link below for your infomation.http://www.chinabakelite.com/en/pro_list.asp?id=127We certify here that our of our hinge products has been passedthe Test for EU standard.