1、12PCS IN 1 SET: Includes 12pcs barb hose fittings, straight through equal diameter design, with standard sizes, easy to connect and replace. 2、PP PLASTIC: These hose connectors are made of excellent PP plastic material, non toxic and tasteless, pure texture, wear resistant and durable. 3、GOOD PERFORMANCE: Has good surface stiffness and anti scratch properties, and is not easy to rust, are ideal joints to replace ordinary iron water pipes. 4、EASY TO CONNECT: These barb hose connectors have compact size and simple structure, easy connection and no leakage, reliable and durable. 5、WIDE APPLICATION: These straight through barb joints are suitable for a wide range of applications in pharmaceuticals, food and beverage, laboratories, etc.