Each Locking Base comes with what you need to get started. Mini Disc and Flat Mount - include installation packages consisting of self-tapping screws and adhesive. Screws provide the best hold. If mounting with the adhesive, make sure the surface is cleaned thoroughly prior to mounting.Bar Mount - to mount, simply pull the adjustable strap tight as you can to any rounded surface (tubes, bars, raft frames, roll cages, grab handles, poles). The Bar Mount can fit rounded surfaces between 1" and 2.5" in diameter.Recessed Cup Holder - Sized to replace and upgrade existing drop-in recessed cup holders that are typically found on boats, heavy equipment, and outdoor recreational vehicles. To mount, simply remove the old drop-in cup holder and push the Recessed Cup Holder into the hole. If you are adding a new cup holder, cut a hole a minimum of 3.625" in diameter. If needed, add an adhesive around the rim of the cup holder.Check out our How to Mount page for images and more information.