Keeps coupler release handle from disengaging while in travel. Will not prevent theft. Also used with detachable trailer jack wheel Zinc plated steel. Carded. SKU: 41109003 MFG: 52081 Shop more products by Seachoice. SHARE Share on Facebook Tweet on Twitter Share on Google+ Pin on Pinterest Free shipping over $35 Normally ships within 24 hours $5.99 Quantity In Stock Add to cart Request a Bulk Quote Thank you for your quote request. We will be in touch. DETAILS Description DESCRIPTION Highlights: Fits 2" & 3" couplers Size: 5/16" Keeps coupler release handle from disengaging while in travel Will not prevent theft Also used with detachable trailer jack wheel Zinc plated steel Carded Cancer and Reproductive Harm - www.P65Warnings.ca.gov. FEATURES MFR: 52081 SKU: 41109003 UPC: 719249520810 Brand: Seachoice