1.Decorate your with different heads of , which makes it more gorgeous and charming! With different heads of , you can select the head of according to the shape of the . It can be used for aquarium, fish tank, garden pond, swimming pool, etc. 2.Made of plastic material, more sturdy. The flow rate and pressure range are determined by the pump. 3.Put the pump totally into the with its nozzle on the. 4.Make sure the pump is firmly fixed at the bottom of the to avoid vibration. 5.It is perfect for decorating your garden pond by making a. Type: Spray Head Set Size: 15cm Material: Plastic Color: Black Package Contents: 18 x Pump Nozzle Heads Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the different from the real thing. The measurement allowed error is +/- 1-3 cm.