These brackets are very stiff to open until installed. For the purpose of testing how these brackets works, it is better to use two pliers to bend the plate inward or outward.<br><br>When you enter a home, an office, or even a garage where organization reigns, you simply feel better. MechWare support bracket is ideal for where limitations and/or flexibility in space are critical, apply it on DIY homemade table, folding partition frame, folding door, or anywhere that requires to be folded when not in use. <br> The spring-activated lock assures stability by locking in the open positions. Folds easily when not in use. To unlock, simply push the latch and fold down.<br> <b>Specification</b><br> <b>Composition and Materials: </b> 12-gauge steel plate <br> <b>Sizes: </b>see picture<br> <b>Color: </b> dark bronze <br> <b>Package Include: </b> 4 brackets, 12 M3.5×20 screws-mount between the table undersurfaces and brackets, 12 M3.5x25 screws-mount between the legs and brackets. <br> <b>Load Rating: </b>225kg(500lbs.)/pair *<br> * These load limits are intended to be used as general guidelines only, and no warranty—expressed or implied. These brackets works better when applied on furniture legs or narrow and simple working surfaces. Wider spacing without supporting of legs will result in reduced load capacity. Actual use conditions will typically result in lower load capacity than laboratory conditions. <br> <b>Environmental Considerations: </b><br> <b>-Environment: </b>Excessive humidity, salts, or other chemical agents can corrode the finish and attack metal or plastic components. <br> <b>-Fastening: </b> Inadequate or incorrect fasteners can result in the brackets pulling loose and causing damage. <br> <b>-Alignment: </b> Improper bracket alignment can result in an installation that is ineffective and unsafe.