VIAHART Classic Sand Hourglass Timeless classic! 1 hour from top to bottom! Great for a desk or study! While we do not guarantee the strength of the glass, you will be surprised by its durability! SIZE AND WEIGHT | Product Measures 8 x 4 x 4 in inches | 20.4 x 10.2 x 10.2 in centimeters | Product Weighs Approximately 1 lbs / 0.5 kgs | These dimensions and weight do not include the packaging 30 day no questions asked return policy and FREE returns!