This listing is for a tester for testing the sex gender or fertility of Hatching eggs if you want to purchase good quality fertile chicken or geese eggs than see my other products 
Sexing Indicator Magnet for Birds & Eggs. Condition is "New". Dispatched with Royal Mail 2nd  Class.

Bird sex indicator magnet.

Simply hover the magnet over the birds vent and wait until the magnet settles.

If the magnet starts moving in a circular motion it's a female/Hen

If the magnet starts moving backwards and forwards from head-to-tail it's a Male/Cock

Neodymium iron boron 'rare earth' material - strongest magnet material available - this is a one side magnet model with thin cotton line for improved efficiency.

Can be used on Fertile eggs or chicks of any age(or Humans)

🐥Saves having to check very intrusive vent checking

on chicks 🐣

We have sold this particular device for many years to bird breeders and receive many, many reports of complete satisfaction.

No scientific claim is made as no such studies have been carried out but seems to work every time

You tube video is available to view just copy and paste the link below

https://youtu.be/RrmDrDWzRzc

i know the postage is high but I've reduced the price of the tester to make up for it,(normally £8.99) I'm still new to this site but will work out how to do that so it shows the right price and postage 😊but the total is correct