3D ADJUSTMENT SYSTEM - No need to remove the door for adjustments. With vertical 2.5mm, horizontal 2.0mm, and depth 1.25mm adjustments via a hex screw, installation is simple and hassle-freeSILENT & SMOOTH OPERATION - Equipped with sealed bearings and extra 6 platic spacers, the hinges ensure quiet and effortless door movement, eliminating any noise disturbancesVERSATILE APPLICATIONS - Perfect for creating invisible doors, folding doors, hidden bookcase doorsDIMENSIONS - 5 x 1.2 x 0.6 inch, perfect for the Door Thickness > 38mm, Width < 900mm, Heigh < 2100mm. Two hinges support up to 88 pounds and opening angle is 110-degreeULTRA-THIN HIDDEN DESIGN - Specifically created for hidden doors, these hinges integrate perfectly between the door and frame, achieving an invisible effect and enhancing the overall aesthetics of your spacePREMIUM 304 STAINLESS STEEL - Made from high-quality 304 stainless steel, our hinges are rust and corrosion-resistant, ensuring long-lasting durability and stability for your doors