This offer is for a pack of 5 pcs x 90mm, High Density Modelling Balls. They can be painted as they are or can be decorated with a multitude of craft and modelling materials. Normal 0 false false false EN-GB X-NONE X-NONE Despatched same day if you pay by 12 noon. Choose delivery speed as you checkout- 2nd class, 1st class or Express Delivery. Please note overnight delivery is mainland UK only (excl. Highlands). They can be used for 3D animations and they have endless craft uses. If using it with Polymer clay, the polystyrene shrinks by about 50% at 130 deg. C. They are useful for class work to.