The simple to use Dapple Safety Jump Cups will eliminate the hassle of lost pins. The Dapple cups are powder coated and made of professional-grade steel. The 3/8 diameter pin arm fits easily in to the standard 1/2 inch pinhole. So easy to use, you can change the cup with one hand! Made in the USA.
This style is made to have a shallow cup hold. Round rails and is for PVC Standards