{"product_id":"pasco-equal-length-spring-set-39012","title":"PASCO Equal Length Spring Set","description":"\u003cp\u003eThe five color-coded equal-length springs in this set have different spring constants: 25 N\/m, 30 N\/m, 35 N\/m, 40 N\/m, 50 N\/m (±5%) These springs appear to be the same except for their colors. But, when equal masses are hung on them, each stretches a different amount. These extension springs are made of steel and are closed, requiring a slight initial force to separate the coils. The unstretched length of each spring is 30 cm and the approximate diameter is 1.4 cm. These springs are supplied with a white storage box with cardboard separators to keep the springs from touching each other.\u003c\/p\u003e","brand":"Nova Scotia School Book Bureau","offers":[{"title":"Default Title","offer_id":43665370513468,"sku":null,"price":113.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3677\/6508\/files\/EqualLength.png?v=1768836633","url":"https:\/\/nssbb.ednet.ns.ca\/products\/pasco-equal-length-spring-set-39012","provider":"Nova Scotia School Book Bureau","version":"1.0","type":"link"}