BKL-117
Black Nylon (plastic) belt buckles for dog collars that are 1/2 inch wide (your leather or webbing should be 1/2″ wide to properly fit in these).
BKL-107 sets include both sides of the buckle and a sliding adjuster, as shown.
Sold in packages that contain 10 complete sets.
BKL-117, 10 pack, $10.00, USA Shipping included