Features: upgrades your workspaces comfort with these ergonomic adjustable desk leg extenders, with two /four height setting and reinforced locking bolts to eliminate wobbling while relieving back/neck strain during prolonged use. build with triple layer cast steel construction and not slip rubber feet, these extenders combine cold rolled durability, high temperature sealing, and rusts resistant coating for year round stability on any floor surfaces . Ideal for remote workers needing ergonomic setups, DIY enthusiasts upgrading foldable furniture, and home chefs seeking Raised prepare surfaces for standing friendly kitchen tasks. Perfectly adapts to straight/angled legs of camping tables, craft workstations, or bar counters (under 1.4" diameter), transforming low surfaces into comfortable standing desks or storage optimized furniture. The collapsible design maintains portability while heavy duty steel ensures load bearing reliability, making these extenders essential for both indoor study desks and outdoor grill stations needing extra height and wobble free security. Specifications: Material: carbon steel Type: 2 speed/4 speed(optional) 2 speed size: about 3.8x20cm/1.5x8inch 4 speed size: about 3.8x44cm/4.5x17inch Package Includes: 4xTable Leg Extenders note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the difference between different monitors, the picture may not reflect the actual color of the item.