uxcell Aquarium Bubble Wall Air Stone Tube, 7", Yellow Product name : bubble wall air stone tube; suitable for : fish tank, aquarium Design : tube shaped; material : plastic, rubber Tube size(jointed) : 17. 8 x 1cm / 7"x 0. 4" (l*d); color : yellow, blue Net weight : 20g Package content : 1 x bubble wall air stone tube; 2 x suction cup