General description Package includes 10 pieces of 3" (7.7 cm) invisible furniture door hinges, suitable for cabinet doors and office cabinet doors. These hinges are designed for plates with a thickness of 10-16 mm and come with 80 matching screws, eliminating the need for additional screws. Technical specifications Size: 3.2 x 7.7 cm Plate thickness compatibility: 10-16 mm Material: High-hardness cold-rolled steel plate Surface finish: Nickel-plated, corrosion-resistant, anti-oxidation Installation Easy installation with eight-hole positioning No drilling required for installation Simple alignment and adjustment using a screwdriver Multiple installation methods available for a perfect fit Usage Hydraulic telescopic design for smooth operation Doors open and close gently and quietly Reduces turbulence and noise when closing No rubbing noise during door closure