Flash Led Light Up Ice Cube With Removable Battery Set of 12 Diamond 8 Mode MultiColor Rainbow Key-Press Size: 40*31(H)mm,use a samll press-key botton to change color,FDA approved Can choose color: Red/Blue/Green/RGB,more bright than square ice cube Can be maintained for 15 hours when continuous lighting,replace 2 lithium cell(CR 1220),when the battery runs out Suitable for family/outside party, garden,wine club,solon