Description: *Durable, excellent elasticity and not easy to rust. *Easily bending soft tube without kinking the tube. *Can be used as connector for copper tube, aluminum tube, stainless steel tube of thin wall of air condition or refrigerator. *Suitable for fast, free-form bending of soft copper and aluminium tubes. *Use in plumbing and industrial applications. Specifications: *Material: Spring steel *Color: Silver (As Pictures Show) *Length: 21cm (Approx.) *Inner Diameter: 1/4″, 5/16″, 3/8″, 1/2″, 5/8″ (Approx.) *Quantity: 5pcs Package Contents: 5pcs/Set Spring Bending Tube Kit Note: The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.