This 250g / 2.5N blue colour-coded spring balance has a robust transparent plastic body with a chrome-plated ring at the top and a hook at the bottom. Measures up to 250g / 2.5N Graduated in both grams and Newtons Can be used for both force and mass measurements Bevelled top for use on an inclined plane Zero adjustment Clear plastic tube allows students to see the action of the spring Fitted with chrome plated hooks and rings Overall length 285mm Length of tube: 160mm 20mm diameter .
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