They can also be disassembled and used, and they can be used to sit or lean according to your needs. Good product, good quality and low price, it is worth buying.Made of sturdy steel, rust-proof and corrosion-resistant, sturdy and durable, not easy to bend and break.They can save you a lot of space, make you cleaner and tidy, and are perfect compatible with your project.Easy to assemble and very easy to use.This pair of items are made of high-quality steel, rust-resistant, corrosion-resistant, sturdy and durable, and not easy to bend. Their thickness is 2.1mm and 3.3mm, and they can carry a large capacity of about 50kg.Made of sturdy steel, rust-resistant and corrosion-resistant, sturdy and durable, not easy to bend and break, large load-bearing capacity, about 50kg/100lb, so they are used as large elevator coffee table mechanism hardware furniture spring hinges, use this spring type elevator You can turn your ordinary coffee table into a functional coffee table, or it can be used to change the function of another table, saving you a lot of space, making you cleaner and tidy, very suitable compatible with your project, easy to assembleStatus: 100% brand newAngle range: about 125 degreesColour:blackMaterial:Heavy steelSize:Thickness: about 2.1 mm and 3.3 mmFolded size: about 340 x 110 mmFloor size: about 176 x 50 mm x 235 mmTop compatible withward length: about 220 mm (all dimensions are shown in the picture)Package Contents:2 x Spring upgraderOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.