What this product does Raises and stabilizes folding or straight table legs to match your desired height and use. Provides two secure height positions that raise the table by 3.5 inches. Key benefits Improved ergonomics: raise low tables to a comfortable working, serving, or dining height. Increased stability: four-sided reinforcement screws at the top plus rubber feet reduce wobble and slipping. Secure attachment: double B-type locking pin system makes installation fast and keeps legs locked in place for stronger load capacity (twice that of some other brands). Durable construction: made from quality steel to resist bending, rust, and oxidation in typical use, for reliable long-term performance. Compatibility and size Inner diameter: 47.3 mm; outer diameter: 50 mm. Use only on table legs with a maximum diameter ≤ 40 mm (fits most square and round straight legs, including folding tables). What’s in the package 4 table leg extensions (basically pre-assembled; just adjust to required height) 8 eye bolts with B-type locking pins 16 large mounting screws Easy installation and adjustment Attach the extension to each table leg and secure with the included mounting screws. Use the double B-type locking pins to set one of the two 3.5-inch height positions quickly and securely. Reinforcement screws on all four sides at the top create a tighter, wobble-resistant connection. Performance highlights Four-side reinforcement reduces leaning and wobble better than single-sided designs. Rubber feet protect floors, prevent slipping, and help stabilize the table on uneven surfaces. Steel construction supports repeated use without bending or premature wear. Typical use scenarios Catering and event tables: raise folding tables for buffet service, food prep, or working stations. Home and office: elevate a low table for ergonomic laptop or craft use without replacing the entire table. Outdoor and camping tables: increase usable height and stability on uneven ground while preventing leg sinking or sliding. Important fit note Measure your table leg diameter before purchasing. Inner diameter is 47.3 mm and maximum recommended leg diameter is ≤ 40 mm. This design focuses on stability, durability, and simple installation to give you a reliable way to raise and reinforce folding or straight table legs.