BrandTech B11021 Aluminum Anodized Laboratory Support Jack, 16cm Length x 13cm Width Plate Size, 27.5cm Maximum Height Plate Size (L x W): 16 x 13cm Combination of solid construction with a stainless steel lift mechanism with POM rollers for long life, with anodized aluminum deck Height adjustment hand wheel is made of phenolic resin Rugged construction also provides exceptional stability, even in the larger sizes Popular for use in a wide variety of environments, including fume hoods, solution-baths, and marine and industrial laboratories