- 2 x 1.5mm Slot TEM Support GridsSlot grids are suitable for specimen support when viewing entire large cells for serial sections where grid bars may interfere with sequential information. Slot size 2 x 1.5mm. Copper, Cu/Pd, Nickel & Gold.Average lead time: 1 to 13 daysFrom £29.15Average lead time: 1 to 13 days