This Spring Scale is made up of strong acrylic and is provided with a suspension & a load hook starting from a adjuster. Comes with a capacity of 5N/500gm/.5Kg it is commonly used for laboratory use and is used for determining weight by attaching it a hook. Primary and secondary school teaching instrument teaching dynamometer. Spring dynamometer only, other accessories in the picture is not included! : Dynamometer, Scientific experiment, Spring, Gadget