This compression ring set can fit any eyepiece smaller than 39mm in diameter. It is the same one included with our Phone Digiscoping Adapter - Microscope Edition, but these rings will work with any of our adapters. Set includes four compression rings ranging in diameter from 23mm to 39mm. They include the following sizes:
• 23mm – 28mm
• 27mm – 32mm
• 31mm – 36mm
• 35mm – 40mm
Our products are not toys. Use in a laboratory or educational setting only. Not for children 13 and under.
California Proposition 65 Warning: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.