YUFENG Hourglass Sand Timer 45 Minutes Wood Sand Timer for Kitchen Office School Decorative Use (WHITE PINK) Hand-blown wooden frame sandglass, can serve as a gift and home decor. The color sand flows slowly and can last for 45 minutes. Can use it as timer when do mask or Yoga, enjoy the beautiful time and the wonderful memories with it. Can act as kids plaything in leisure or study time, as well as exercise their patience and perseverance. Note: There is about 10 percent time error compared with precise timekeeper.