Emergency strap tire chains, also known as emergency snow chains or temporary tire chains, are a type of traction device that can be used in snowy or icy conditions to improve the grip of vehicle tires. These chains are designed to provide additional traction when driving on slippery surfaces, such as snow or ice, and can be installed quickly and easily without the need for specialized tools.

Emergency strap tire chains are typically made of a durable, high-strength nylon or fabric material, which is woven or interlaced to form a pattern that enhances traction. The chains feature a series of crossbars or raised elements that come into contact with the road surface, helping to increase traction and reduce slippage.

These chains are called "emergency" or "temporary" because they are designed for short-term use and are not meant to replace conventional tire chains for long periods of driving in extreme winter conditions. They are primarily intended for emergency situations when a vehicle becomes stuck or needs additional traction to navigate through challenging road conditions.

Emergency strap tire chains are lightweight and compact, making them easy to store in a vehicle's trunk or cargo area. They are typically equipped with adjustable straps or buckles that allow for a secure and snug fit around the tires. Once installed, the chains provide increased traction and help prevent wheel spin, enabling the vehicle to maintain better control and maneuverability in slippery conditions.

It's important to note that emergency strap tire chains are not suitable for all vehicles. They are generally designed for use on passenger cars, SUVs, and light trucks with limited clearance between the tires and the wheel wells. Additionally, they have certain speed limitations and are not recommended for high-speed driving.

It's always advisable to consult your vehicle's owner manual and check local regulations regarding the use of tire chains before purchasing or using any traction devices.