The BT1.5I-M0 Dome-Top barb ty, features a unique patented design with its round smooth edges. Paired with the stainless-steel locking barb, these cable ties provide consistent performance, reliability and infinite adjustability through the entire bundle range. Intermediate cross section, 6.1” (155mm) length. Appropriate for Indoor/Outdoor use, made of Weather Resistant Nylon 6.6 with high resistance to ultraviolet light, are black in color and come in packages of 1000.