This item is for extending an existing set or for replacing lost parts and consists of a pack of 25 long purple flexible links (used for double and triple bonds).
Similar length gray links are also available (see related... below) - please ensure you select which you want.
The Molymod system is the original, unique, dual-scale system of high quality low-cost molecular models. These enormously popular sets are ideal for students but are also used by scientists all over the world.
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