- Silicon tipped needle (straight / curved): 20 G stainless steel needle with a soft silicon tip for atruamatic removal of intraocular fluids. - Silicon brush needle (straight/curved) : 20-G stainless steel needle with a soft silicon tip that is fenestrated to create a brush like quality. Useful for atraumatic brushing of the retinal surface with simultaneous aspiration. May be useful for repositioning of retinal folds or breaks.