Prevent tripping and slipping between uneven floors. These thresholds have a polypropylene joint that flexes up to 20° up or down and expands by as much as 1/4″. The joint also acts as a thermal barrier to reduce condensation and help insulate doorways. Made of aluminum, these won’t degrade from contact with rain or snow when used in entryways. The ribbing offers more traction than smooth thresholds. They’re also lightweight, durable, and easy to clean. Trim them with a hacksaw for a precise fit in your space.