Description This labs clamp is adopted of 4-prongs design, providing you more gripping power, stability and security while using. This clamp is made of premium iron material with high hardness, to use, can serve you for a long time. It is simple in design and practical in use. Features -Color: Silver -Material: Iron -Size: 33.50X4.00X3.50cm/13.17X1.57X1.38 in. - Wide uses. Suitable for clamping flasks, beakers, test tube and other scientific experiments. - This clamp is adjustable, allow you to adjust it to fit different sizes of laboratory experiments. - It is professionally designed for meeting your different needs in laboratory, provide more flexibility. - Crafted from heavy duty iron material, not easy to deform or break, provide along serving life. - This clamp will not damage your test tube or glass breakers, more safe to use. Wide uses. Suitable for clamping flasks, beakers, test tube and other scientific experiments. This clamp is adjustable, allow you to adjust it to fit different sizes of laboratory experiments. It is professionally designed for meeting your different needs in laboratory, provide more flexibility. Crafted from heavy duty iron material, not easy to deform or break, provide along serving life. This ​clamp will not damage your test tube or glass breakers, more safe to use.