Indoor Outdoors: This is an original product, invented, made, and produced by us here an Indoor Outdoors. We invented these brackets in 2016 to meet a need on a gardening project of our own. Great British Steel: These brackets are made in the United Kingdom with Great British galvanised steel for a corrosion resistant, long lasting product 90 Degree Angle: These corner brackets can be used to strengthen and secure 90 degree angle corners in sleeper constructions. They help keep the corners of planters, or the bends in path edging nice and strong. Easy Installation: To install, you must simply bang the stake into the ground where the sleeper is to be installed, we recommend a rubber mallet for this, then just screw the bracket onto the two timber sleepers you wish to connect. This installation is both simple and incredibly secure. SleeperFit: These corner brackets are 440mm tall and is made from 2mm Heavy Duty British Galvanised Steel. The bracket works with all sizes of wooden sleeper, the ones we have used in listing photos are 7" x 3". These Sleeper Brackets can be used to match other bracketry and fixings in your garden. All SleeperFit railway sleeper brackets are all covered by a durability promise, we use these products ourselves and stand by their quality., Manufacturer: Indoor Outdoors