Tlily - 80 Pcs Blue Air Stone Aquarium Fish Tank Oxygen Diffuser 3.9 x 1.3cm

Aquarium Air Bubble Stone; Suitable for: Aquarium, Fish Tank. Material: Mineral, Plastic; Import Diameter: 4.8 mm/ 0.19 Inch Size(Approx): 3.9 x 1.3 cm / 1.5 Inch x 0.49 Inch (L*W); Color: Blue Weight: 44g/Set Product Description Creates bubbles in the aquarium when attached to an air pump. Used to increase the dissolved O2 level in the aquarium. An important instrument for successfully keeping aquatic fish for the respiration process. Package Contents: 80 x Aquarium Bubble Air Stone Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.