Upper and lower stainless steel screens (3 of each) are made of very fine mesh. The fine mesh is great for vaporizing very finely ground herbs.

Includes:

• 3 pcs. upper screen (with hole, Ø 0.9 inch/24 mm)
• 3 pcs. lower screen (without hole, Ø 1 inch/26 mm)
• 1 pc. nut
• 1 pc. washer