Sewing machine magnetic guide

Sewing machine magnetic guide which holds on metal bed. It allows sewing straight using this guide as a reference.To get the finished product, you need:6 magnets (strong) 12x3mm (I used those: https://www.amazon.ca/-/fr/dp/B09Q8L2KYD?ref=fed_asin_title&th=1)2 flat rubbers M12x3mm (I used those: https://www.amazon.ca/dp/B0DFC57C7T?ref=fed_asin_title&language=en_CA&th=1)strong glue (I used Gorilla glue)Assembling:glue the first magnet inside the small holeglue the second magnet on top of the first onethen glue the flat rubberthen glue the third magnet on top of the second onedo the same for the other siderob a little the hole thing on a sandpaper sheet to ensure a good flat levelNOTES:this will work on a machine on which the bed is magnetizable