Automatic Door Closer Silent Punch Free 30kg Adjustable Spring Easy Install Home Office

This automatic spring door closer is crafted from stainless steel and zinc alloy, featuring a one-piece molding and electroplating process for rust resistance, durability, and a long service life. It reduces door-closing intensity to protect doors from damage while minimizing noise interference, with adjustable tension via screws to customize slow or quick closing for a quiet, comfortable environment. The adjustable design lets you use the included adjustment rod to tweak closing force as needed, enhancing convenience. Easy to install on both left and right doors, it uses threaded connections for simple assembly and disassembly, ensuring smooth, durable use. The package includes the door closer, screws, an adjustment rod, and a seal, suitable for doors up to a certain weight.