The DiscMounts are manufactured under the following Patent number US 7,382,533.
All these years I have been able to maintain prices due to a steady increase of volume & buying and by using special tooling. The recent rapid rise in cost & inflation has forced me to increase prices after 18 years! Starting April 13th, 2022, all current and future mounts and accessories will be at the new listed prices. I appreciate your understanding as this is my hobby too. — Thank you for considering DiscMounts, Tom.