Pair of Adjustable Spring Hinges - Self Closing - Door Closing High Quality Steel - Polished Chrome Finish Includes matching screws and hex wrench For door thickness 1 5/8" - 1 3/4", Gauge .106 (2.7 mm). Adjustable Tension Delivering quality residential and commercial hinges since 2005 — Hinge Outlet, Inc., proudly US-based. High Quality Pair of Steel with Polished Chrome Finish 4 inch with Square and 5/8 inch radius. Includes matching screws, 4 hole zig-zag pattern, gauge .106" (2.7MM). Typical use: 1 5/8" - 1 3/4" thick doors. Also known as self-closing hinges or door closing hinges. Sold in Pairs - 2 Complete Hinges