Mystery Box will contain 2-3 Praying Mantis nymphs.
Requiring either fruit flies or greenbottles.
Mystery Box No:2 will contain 3,4 or more? Praying mantis...nobody knows..
 
Each box will have a value of or exceeding the cost of the Mystery Box.
It's a lucky dip as to which Mantis you will recieve. 
 
Please make sure you have adequate set ups and heating with a thermostat before purchasing.