This set of pins include: 28 pieces of 3/32" x 3", 13 pieces of 5/32" x 3-1/4", and 9 pieces of 3/16" x 4". Double R-pins are know for their shape similar to the letter R. These have an extra loop for more support. These pins can be used in many applications. One specific use would be to secure the end of a hitch pin or shaft.
WARNING: This product can expose you to chemicals including Lead and Lead Compounds, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.