*KeyFeatures *PREMIUM QUALITY- Durable stainless-steel and cast iron adopted by this ring support stand does not rust or corrode, and could resist ultrahigh temperature, ensuring permanent use. *STABLE BASE- The square base of this burette clamp, constructed of cast iron, with 8.1"x5.7" in size, is heavy-duty and stable. An extra hole is added to the base in case of urgent need. *VARIOUS ACCESSORIES- Coupled with 3 adjustable clips (maximum opening: 2.4"/3.5") and 3 round hoops, our retort ring can fit the different sizes of test tubes or flasks so as to meet your multiple requirements. *EASY TO ASSEMBLE- Exquisite stand lab, equipped with grip clips which aim at keeping the clips or hoops firmly fixed, made significant contributions to the easy assembly and use. It requires no special training or techniques. *WIDE APPLICATION- Designed for physics & chemistry experiments like filtration and heating, the burette kit is universally used in laboratories, schools, hospitals, factories, etc. ******************************************************************************************************* *Specifications Material: Stainless-steel & Cast Iron Pole Length: 23.6"(600 mm) Base Size: 8.1"x5.7"(206 x 145 mm) Maximum Opening: Beaker Clip- 2.4"(61 mm), Triangular Clip-3.5"(89 mm) Hoop Size (Inner): Large-3.3"(84 mm), Medium-2.7"(68 mm), Small-2"(51 mm) Weight: 5.5LBS (2.5 kg) ******************************************************************************************************* *Pakcage Content 1 x Base 1 x Pole 1 x Triangular clip 2 x Beaker clips 3 x Hoops 3 x Grip Clips