Package Included: Red, green and orange, 3 packs all are beautiful and vivid in your tank. Safe for Fish: Made of premium soft silicone, flexible, realistic and vivid. Safe for all aquatic life in both fresh and seawater. Easy to Use: Roll up the string to desired length, suction cup sticks at the aquarium base or on glass surface and it's done. Material: Soft Silicone,harmless to all fish,both for fresh and saltwater Add Funny for Aquarium: With help of wave maker, it can move in water, vivid as a real swimming sea horse.