Our Diaphragm accessory allows you to cycle through six different size apertures for light experiments: 2mm, 4mm, 6mm, 10.75mm, and 14.85mm.
This accessory is designed to work with our Basic and Deluxe Optical Benches (#OPTBN-BSC and #OPTBN-DLX).
WARNING: This product can expose you to chemicals including nickel, lead, and styrene, 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.