Product review (1 stars): Concept good but won't fit domed glass lids
The concept is good on this knob and I was really hoping it would work as I like it better than the metal ones I also purchased.  However, the screw is too short for any of my domed glass lids by 1/4 to 3/8's of an inch.  I'd suggest the maufacturer include 2 different lengths of screws to be truly an effective product as I will have to purchase a longer screw to use this product on any of my glass lids for which I purchased the product.  Not cool!!!