Feature: Lift and up hinges made of high quality steel material, durable and sturdy to use, not easy to bend. It support slowly raised and folded, be smoother to lift up and down, easy to use and work great for home project. The lift top coffee table hinges close softly and have just the right amount of spring to stay shut but just open with very little effort. The coffee table lift top hardware suitable for functional coffee table, tea table, telescopic coffee table, mini wall cabinet etc. How to Install: To install the coffee table hinges you could first laid out the table top upside down, then placed the frame of the table on it. Predrilled and mounted screws. The top is easy to open with maybe 5 pounds of force. Closing is easy as well with maybe 10 pounds of force needed. Specification: Material: Heavy Duty Steel Color: Black Size: As shown in the picture Load Capacity: Approx. 100lb Mounting Screws: No Mounting Screws Included Package included: 2 Pair x Lift Top Table Hardware (4pcs, left+right)