Atlas Sound AD19BExtension Tube 45 Angle Tube; 5/8" #27Thread Chrome is a 45 angle tube with 5/8"-27 male and female end. It is chrome plated and measures 6"H x 3" Ext. (Net Weight: 2.2 oz.) This model is designed with durability for use in Touring P.A. Applications, assures compatibility and long lasting use. Its U. S. Standard 5/8"-27 Termination Accommodates All Types of Microphone Holders.