Double Helix Tube Stand

• Double‑helix design inspired by the structure of double‑stranded DNA; perfect as a science gift or display piece.
• Available as stand only or stand with tube.
• Rack hole diameter: 30 mm.
• Rack material: PLA plastic.
• 50 ml plastic tube: Diameter 28 mm (1.2"), Height 115 mm (4.5").
• 60 ml glass tube: Diameter 27 mm (1.1"), Height 142 mm (5.6").
• Tubes with screw‑on caps; watertight.
• Color may vary from photos.