Product brand: BEJIALEProduct material: zinc alloyProduct color: off-white/blackProduct features: anti - clamping hand/buffer doorScope of application: A sort of wooden doors/steel doorsFitting door seam: 5-30MMManual size: Please allow 1-3MM error/Please seek advice from the particular objectInstallation: Two set up methodsProduct installation: installation by means of aboutWholesale: Please contact customer service