Generic Name: Caffeine, other herbals Strength: 250 mg, unknown Manufacturer: NVE Pharmaceuticals Trade Name: Blakjax Type: Dietary Supplement Class: OTC Size (mm): 22 X 7 Comment: Image courtesy of 4andsic. Imprint Blakjax AJ3850 Note: May find in European products listed as "Stacker E" or "Stacker II"