Elite Silicone Airline Tubing for Aquarium, 250-Feet, Blue This airline tubing is the perfect product when an air device is required for aquarium Ideal for use with air stones, air actuated ornaments and air driven filters Designed to fit all standard outlets, the tubing will remain supple and retain its shape Made of silicone; measures 250-feet length Available in blue color; this product weighs 4-pound