Our nickel-plated spring steel Mohr's Pinch Clamp will accept tubes up to 13mm in diameter.
WARNING: This product can expose you to chemicals including nickel and lead, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Our products are not toys. Use in a laboratory or educational setting only. Not for children 13 and under.