Shampoo Bottle Holder (Jean&Len)

I guess everyone knows the problem: the shampoo bottle is almost empty and you're struggling to get the last bit out.Simple solution: turn it upside down.But that doesn't always work. They always fall over at the most unfavourable moments and that annoyed me so much that I designed this holder especially for Jean&Len shampoo and conditioner bottles. Perhaps they will also fit other brands. The larger ring has a diameter of 5,1 cm and the smaller ring has a diameter of 3,1 cm.