This socket set features protective sleeves and internal plastic inserts that prevent scratching of wheels or decorative lug nuts. Hollow design creates room for removing longer bolts by pushing out the plastic insert. Blow molded case for storage and transport. Case dimensions: 10-1/4 L x 6-1/4 W x 1-3/4 H. Size range: 13/16, 3/4, 7/8, 1, 1-1/16, 17mm, 21mm.