The peg hook is 3/16 inch (D) and 10 inch (L). This hanger can be used with either 1/8 or 1/4 inch holes. The peg hook is made of medium duty 7 gauge steel with a zinc finish. This wire has a curved and rounded tip that keeps merchandise from slipping off the end. The peg hook is versatile and economical and can be purchased in other gauges and lengths.