1. wooden hourglass sand timer 2. 1, 3 5 minutes each sand 3. colour selectable 4. OEM service 5. wooden hourglass sand timer 1. Holder material: wooden, glass sand, PP tube 2. Products weight: 135grams 3. sand glass size: 9 x 3 x 9cm 4. time: blue sand for 1 minutes, yellow sand for 3 minutes, white sand for 5 minutes 5. regular colour: Orange, red, yellow, blue and green