Adjustable autolocking joints with 360degree rotation provide flexible setup and reliable stability. Easy to use: push the button on the joints, reposition, then release to lock in place. Set it to multiple angles and heights to fit different body positions, postures or laptop sizes. Height adjustable from 4 to 50 cm. Tray size 42 x 26 cm, suitable for laptops up to 17 inches. Supports weights up to 25 kg. Built from aluminum alloy and durable plastic for a lightweight, portable, and durable construct. Compact, foldable design makes it easy to carry and store. Versatile use scenarios Work from a couch or bed with a comfortable laptop setup, adjusting height and angle for an ergonomic position. Use as a dinner tray or for serving breakfast in bed, with a stable surface and easy adjustment. Standalone utility for holding sound equipment or a video projector, or as a standing desk, book tray, writing desk, or tablet holder. This product combines strong function, compatibility, and portability in a single, easy to use platform.