Delivered on time and well packaged. The half-sheet instructions leave a lot to the imagination of the buyer. Before ordering make sure the angle between the two supporting walls is indeed close to 90 deg; a much wider or, especially, much narrower angle might not allow for a proper installation. Although the kit came with 2 wall screws, 1.5" long, and 2 anchors per bracket, it is unclear from the instructions that two screws must be used for each bracket. In fact, because: [1] the design of the brackets is such that a single screw through the upper, slotted hole should be sufficient to provide the necessary hold for a shelf loaded with reasonably light items (as one would expect for a glass shelf); [2] a pair of holes for 2 screws to secure each bracket would be sufficiently close to one another to raise the possibility of weakening that area of the dry wall; and [3] using another screw through the lower, round hole of the bracket could lead to non-trivial marring of the wall just under each bracket when clamping the shelf, as discussed below, I decided to install each bracket with only one wall screw through its upper hole, which is reinforced with a rectangular "steel flake". Note that to mount the shelf firmly, the holding wall screws must be fully tightened. To do this, the brackets' jaws must be sufficiently opened to insert a screwdriver to tighten the wall screws, and such an opening is wider than that needed to clamp the glass shelf in place. The problem here is that once the bracket is firmly mounted on the wall, clamping the shelf by tightening the screw at the lower end of each bracket --a process that moves up the larger part of the bracket's body-- can scratch the underlying wall. To minimize this, I attached each bracket to the wall with its jaws closed enough so that a thin Phillips screwdriver (with shaft diameter just slightly bigger than the glass thickness) could be inserted to tighten the single wall screw of each bracket, a procedure which left only a very small upward displacement needed to clamp the shelf (using two wall screws for each bracket would have required a much bigger opening of the jaws, leaving at least about 1" of upward bracket displacement to achieve clamping). Finally, I do not agree with two prior reviews. One claims the shelf dimensions are not given but the item's title ends by (at least now) "... 12-Inch by 12-Inch," which pretty much sums it all; the other claims the anchors are for masonry and not dry walls, but what I received were Hillman-like, light duty dry-wall anchors, such as the one in [...] (but in white and with smooth retaining side fins). Given the design and the material of the shelf, I did not see the need for heavier duty anchors -- if you are doubtful, Wall-Dog or Raptor anchors should certainly give a stronger load support. We needed the shelf for a renovated bathroom (its satin finish goes quite well with all the Grohe bathroom fittings) and it could be quickly installed. It is now firmly mounted and holding all the items without any problem. Looks good, too.
