Dual function - works with or without spring. Outer diameter is 3/8".
California Residents: Prop 65 Warning
This product will be shipped with Prop 65 Warning to all California shipments.
WARNING: This product can expose you to chemicals including Phthalates is known to the State of California to cause cancer, and Phthalates , which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.