- Height adjustable and compatible: fits most tables including folding square legs, square straight legs, and round straight legs. Two height settings add up to 3.5 inches of lift. Reinforcement screws at the folding leg connections keep the extensions securely attached and prevent detachment. - Package content and compatibility: preassembled for easy use. Includes 4 table leg extensions, 8 eye bolts with B-type locking pins, and 16 large mounting screws. Inner diameter 47.3 mm, outer diameter 50 mm. Table legs must have a maximum diameter of 40 mm for compatibility. - 4-side reinforcement for stability: reinforcement screws on all four sides enhance levelness and reduce wobble. Rubber feet prevent slipping and protect floors. - Easy installation with strong load: double B-type locking pins simplify height adjustment and installation. This design provides higher load capacity for reliable performance. - Quality material and durability: made from durable steel, these extensions are solid, smooth, and sturdy. They resist bending, rust, and oxidation for long life and reuse in varied conditions. - Practical use scenarios: ideal for on-site event setups to raise folding tables, classroom presentations needing a taller surface, or catering and workshop environments where a stable, elevated table is needed.