Six 9cm sandtimers: Orange: 30 seconds Red: 1 minute Green: 2 minutes Pink: 3 minutes Yellow: 4 minutes Blue: 5 minutes;The timers for the minutes are the same colours as the corresponding colours of the the Montessori short coloured bead stairs.;The times are not marked on these timers (small circular labels are provided if you want to stick these to the tops and bottoms of the timers - please make a note of the colours/ approx. times above);The time is reasonably accurate, but the nature of the product means they are not absolutely exact.;Dimensions: each timer is 9cm tall. Lots of uses! ... some of the feedback I've received includes... I use them in my school...having a range of times has been invaluable for many situations including improving turn-taking, attention, knowledge of time, completion of work, independent learning and motivation., Work very well for my class if anyone needs time out as they can sit and watch the timer until they're allowed back in. Labels for each timer work well., very useful for teeth brushing, getting dinner finished etc with my four year old, I use them to try to help my Autistic Grandson to complete tasks in a given time and develop his temporal awareness. Amazing Child Montessori is a rich site for education aids., Bought this to help me when I need to discipline my kids, counting up to ten worked too, but the sand timer is a good visual tool that helps them visualise the difficult concept of time.

• Set of 6 Sandtimers: 30 secs - 5 mins (Height = 9cm)

Set of 6 Sandtimers: 30 secs - 5 mins (Height = 9cm)Amazing Child Montessori