Stainless Steel Door Hinges: The spring hinges are constructed from high quality stainless steel, wear resistance, rust resistance, durable and long lasting
4" x 3.5" Mortise Spring Hinge: The spring hinge measures 4” x 3-1/2” and 2.7 mm thick; Fits Door Thickness 25mm-43mm; Fits Door weigh:12-16kg
Unique Design: Self closing design uses an interior tension spring to easily and conveniently close the door; Suitable for any type of door
Easy to Install: We have made sure that our product is tremendously easy to get up. Included are attachable screws and hex wrench that fit very nice and sturdy to keep your door hinges intact to complete the job to perfection
Warm tip : For maximum versatility, use a single or multiple spring hinges on each door, depending on the door weight and the spring tension desired. We offer 90 days warranty, if you have any question about our product, please feel free contract us for solution