This is a beautiful item, purchased and only installed once, but I am selling it at a bargain price because I can't find the included screws. WOLF TOOTH COMPONENTS / Wolf Tooth Components. An innovative item that allows you to slide the mounting position to adjust the bottle cage base. Prevents interference with frame bags and other items, and maximizes the space within the frame. Also, depending on how you use it, you can not only move it but also increase the number of bottle cages. Made in the USA SPEC Size: 307mm Material: 6061-T6 aluminum Thank you for viewing.