Lab Jack, Heavy Duty, Metal, Small, Blue, Base: 3" x 3.25" (80 x 76mm), Minimum Height: 1.9" (48mm), Maximum Height: 5.8" (148mm), Load Capacity: 66 lbs. (30 kgs)

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...

Lab Jack, Heavy Duty, Metal, Medium, Red, Base: 5.5" x 4.7" (140 x 120mm), Minimum Height: 2.3" (58mm), Maximum Height: 9.5" (242mm), Load Capacity: 110 lbs. (50 kgs)

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...

Lab Jack, Heavy Duty, Metal, Large, Yellow, Base: 5.9" x 4.75" (150 x 121mm), Minimum Height: 3.1" (78mm), Maximum Height: 10.9" (278mm), Load Capacity: 175 lbs. (80 kgs)

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...