Wall ties are an essential component in the construction of masonry walls. They are metal wires or strips that are used to connect the inner and outer layers of masonry in a cavity wall. The purpose of wall ties is to ensure that the two layers of masonry work together as a single structural unit, providing stability and strength to the wall.

 Small extension springs, on the other hand, are ideal for applications where space is limited. Despite their larger size, they still provide reliable extension and retraction functions, making them suitable for use in electronics, medical equipment, and precision instruments.