- 2 x 0.5mm 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 0.5mm. Copper, Cu/Pd, Nickel & Gold.Average lead time: 1 to 10 daysFrom £31.12Average lead time: 1 to 10 days