Railing Wall to Glass Clamp: Suitable for glass thickness 3/8"-1/2"(10-12mm). And suitable for both indoor and outdoor use. Matte Black Railing Glass Clip Holder: Made of Stainless steel 304, black matte. 90 Degrees Glass Railing Clamp: Fit for fence glass, balustrade, balcony deck, pool, stairs, handrails, bathrooms, etc. Easy to Assemble: This glass to wall clip no need to cut holes in the glass panels. Step 1, drill holes in the wall and insert anchors, then tighten one side of the glass clamp to the wall. Step 2, adjust the tightness of the glass through the screws on the clamp. Step 3, finish the installation immediately. Item Dimensions(LxWxH): 2.56"x2.56"x1.03". Widely used for home/office glass enclosure, swimming pool glass enclosure, garden glass enclosure, stair railings, balustrades, etc.