Adjustable or tie-back stop applications, spring activation, and the prevention of wire migration.
For limited space between wide molar attachments or when it is impossible to create a tie-back bend in an archwire.
Very useful in combination with TAD mini-screws and closed springs. 
A unique internal design can keep the thread inside without scratching or distorting and still hold it with full tensile capacity. It is easy and simple to use and saves a lot of precious time. Does not cause any discomfort to the patient. They are perfectly adjusted for the moist oral environment, incredibly durable, and stable.
A screw driver is included with each pack