Lab Jack, Yellow, Large, 5.9 x 4.75"

These rugged laboratory support jacks provide stable height adjustment for various items in the lab such as flasks, beakers, water baths, and other small equipment. They are constructed of heavy duty aluminum alloy for years of trouble-free performance. The jacks are easy to clean, rust-proof, corrosion and chemical resistant. Each jack features a distinctive satin finish and easy grip knurled adjustment knob.