After e-mail replies by Lisa and Jessica in warp speed time I was advised to wait for a sample to mailed to me to verify the size. The sample was sent for free and it was perfect for my application. (Your catalog said two and three quarter inch diameter but my fixture measured two and one half inch diameter.) Dispite the discrepency, the sample was a perfect fit for my antiquated fixtures. I e-mailed my order and payment and received my lenses securely packed in a manner that would have survived anything. The pieces were exactly what I could not find anywhere last year so I almost gave up trying. Luckily I gave it another shot and found your company. I have already informed two other people in search of similar items you have. The catalog I received seemed to be exactly on the money to see and find the product I needed.(You sent me a catalog after my first e-mail). Please use me as a reference for a super product and even more super service. Thank You, Jim Totenbier Jr. .