Full extension drawer runner with a synchronized mechanism for 19 mm (3/4") drawer material thickness. True progressive action with rack and pinion action. Load capacity: 154 lb dynamic / 170 lb static. Height adjustment: + 2.5 mm. Side adjustment: +/- 1.5 mm. Depth adjustment: +/- 3 mm. Meets and exceeds ANSI BHMA A156.9-2020 Grade 1 Standard. Sold in any quantities. 100% Made in Italy.