The product has changed - they do not stay on for even a day now!
I have been ordering 2-3 boxes at a time of this product for over a year - and they were fantastic!  I ordered again in September 2021 and the product has changed!  I cannot get the crystals to stay attached.  It appears the plastic discs are different - stiffer and there does not appear to be adequate adhesive to keep the product attached.  I have used this latest box for a week, and have gone through all the seed crystals in that week.  A box normally would last for 2 months.  I hope you will change back to the fantastic product I had experienced prior to this last purchase.  I do not want to find someone else to trial and buy from!
Rating: 2 stars