Hourglass Sand Timers-Set of 2 for Home & Office Decoration-60 Mins/5 Mins or 30Mins/5 Mins (30 Mins+5 Mins, Black)A new better way to manage your time 30 Minute ( Or 60 minutes ) : Work, Study , Exercise, Yoga, Meditation Time ! 5 Minute: Play or rest time! As excellent decorative elements. it is not only work as a sand timer set, but as a decoration on your desk, home and office, It works shinning and unique . But more , as a science and education toy to your boys and girls. All glass is made of 100% high borosilicate glass , hand blow techs. Stylish Gift Well