Designed for Aspire Nautilus Mini BVC Glass Clearomizer. This tube is made of stainless steel and pyrex glass, which allows users to see how much e-liquid is left. Note: Replacements Coils for Aspire Nautilus BDC Glass Clearomizers are compatible with the Aspire Nautilus Mini BVC Glass Clearomizer. Brand: Aspire Material: Stainless steel & Pyrex Glass Size: Length 37mm; Diameter 19mm Capacity: 2ml