Features: About power and effectThe gas effect of the gas strip stone is proportional to the power of the oxygen pump. The greater the power, the greater the gas output, the more beautiful it is. The longer the air strip stone, the more powerful the oxygen pump is needed to have a good effect. Ultra-fine air strip The magical thinning effect of ultra-fine air strip will not appear until it is soaked in water and oxygenated for about half an hour. The oxygen supply effect of small volume is better, and then adjust the normal use of large volume after the magic thinning effect appears. Connected with air pumpConnected to the air pump, and into the water to help the air pump oxygen into the water. Never use without worrying about clogging, can be removed and washed, both fresh and sea water can be used. Save electricity and reduce noiseIt can prolong the life of air motor, save electricity and reduce noise. The amount of bubbles is uniform, increasing dissolved oxygen in water. Can customize the drilling, according to the cylinder density needs to adjust. Can be splicingProducts can be unlimited splicing, it is recommended to splice as much as possible the same size, unified 7 inch or 10 inch.Special material, oxygen dissolving effect is several times of ordinary bubble stone. Strong suction cup can be attached to the bottom or cylinder wall.(If you need to splice and lengthen the fish friends, please choose air strips of the same size for splicing. Due to the different production molds of different sizes, there will be different air pressure, so it needs to be 7-inch or 10-inch.) Specifications: Material:Plastic Color:Blue,green Type A:7in blue; B:10in blue; C:7in green; D:10in green Size(about): 7inch:17.8cm/ 7inch in length 10inch:25.4cm/ 10inch in length Package Included: 2pcs x Aquarium Air Bar Tube Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.