This product is a professional and practical hook pin lock with reasonable design and practical functions, which can safely and reliably fix the trailer ball bracket to the tow pole. It is made of excellent craftsmanship and has a reasonable structure. This is a very good hook pin lock, it will be your . Features -Color: Black. -Material: Iron. -Size: About 12.00X1.80X1.80cm/4.72X0.71X0.71in. - The flexibility of this trailer hitch pin makes it easier to use and allows the pin to be safely held in the trailer hitch and ball mount. - Protected by a durable coating, these two hitch pin needles maintain good rust resistance and trouble-free use each time. - Made out of iron for reliable strength, the strength of this iron makes you feel safe every time you travel. - To install the trailer hitch pin, simply insert the ball mount or other trailer hitch attachment into the hitch receiver on your vehicle. - After the pin on the side of the receiver tube is aligned, insert the hitch pin. Package list: 2 x locks