30 minute timer 1.size:dia 80mm*height130mm 2.color:as the ... .logo print availble Basic product information :1. Product Name: 30 minute timer ;2. Material: metal frame,glass sand container;3. Size ... minutes timing, The Error is less than or equal to ±10%;customers can choose the color of the sand according to ... , screen printing,coloring,laser,embossing,etc. up to you. 30 minute timer