THIS LISTING IS FOR A VINTAGE NICRO MARINE, TOWABLE ROLLER "BEARING" POLISHED BRONZE SPINNAKER CAR T-TRACK SLIDE FOR 1 1/4" TRACK. INSIDE OF THE HEAVY CAST 1/2" DIAMETER RING MEASURES APROX 1 3/4". 

PLEASE CHECK MY OTHER LISTINGS FOR ADDITIONAL SAILBOAT HARDWARE, I AM HAPPY TO COMBINE SHIPPING. 

I AM HAPPY TO COMBINE SHIPPING INTO THE LEAST EXPENSIVE FLAT RATE CONTAINER FOR MULTIPLE ITEMS, EITHER A PADDED FLAT RATE ENVELOPE, OR A SMALL, MEDIUM, OR LARGE FLAT RATE BOX AND WHATEVER FITS CAN SHIP TOGETHER FOR THE COST OF ONE FLAT RATE CONTAINER.