The ALPHA WIRE part F7503/4-BK105 is a high-quality electrical insulation product designed to easily and effectively protect wires and cables. It is specifically designed for a 3/4" diameter and comes in a sleek black color. Each package contains 5 pieces of 4-foot-long tubing, providing ample coverage for your wiring needs. The FIT-750 is manufactured by ALPHA WIRE, known for their reliable and durable products. Trust this product to provide excellent electrical insulation and protection for your wires, ensuring optimal performance and longevity.