The balancing blocks which are also known as wheel weights are used in car wheel balancing and are designed to be placed on the wheel to counterbalance heavier areas caused by the tyre and wheel combination. The balancing blocks act like a counterweight that compensates for this heavier area, and it does this by creating a circular pattern. This helps to ensure that the wheel pairs of balanced and stops it from wobbling, vibrating or running unevenly. This, in turn, allows for a more comfortable ride for the driver and prevents premature tyre wear. Additionally, balanced wheels can help with fuel efficiency by reducing the amount of friction caused by the imbalance.