Top Estore 30/60-minute Sandglass Timer Simple Retro Home Office Decor Triangular Base Hourglass (black-purple, 60 mins) Material:wood,glass and sand Size:30 mins: 15*11cm/5.90*4.33 inch,60 mins: 21.5*14cm/8.46*5.51 inch Function:Ideal for timing-cooking,making tea,games,exercising and so on. Also act as a wonderful decoration for your home and office. Place to be used:Living room,bedroom,office,kitchen,study etc