These are HO scale brake pads from Kadee. It comes in a package of 4 with a wide bolster design. Ideal for use on Kadee® 70 & 100 Ton Trucks, including models #513, #518, #555, #558, #560, #566, #569, #570, #1560, #1566, #1569 & #1570.

To use these brake pads, simply install them on your Kadee 70 or 100 Ton Trucks as per the model numbers mentioned. Make sure to align them properly for smooth operation. When handling, be gentle to avoid any damage. For maintenance, regularly check the pads for wear and tear. If you notice excessive wear, it's time to replace them. Keep them clean to ensure they work effectively.