28mm convex lens glass lens

With this 28mm convex glass lens, you can realize various optical gimmicks. The lenses are perfect for replicating the Nixi (Nearly) NIMO Clock:

https://www.hackster.io/paul-bricmont/nearly-nimo-clock-9309ec

Technical Details:  

• Material: Glass
• Height: 9.5mm
• Outer diameter: 28mm
• Inner diameter: 25mm
• Edge width: 1.5mm
• Edge thickness: 2.4mm
• Light transmission: >97%
• Refractive index: 1.47
• Weight: 6.5g

Scope of delivery:

• 1x 28mm convex lens Glass lens