Versa-Pods are constructed of thick, textured plastic for durability. Versa-Pods accept 4 inch full-range speakers of your choice*, or you can purchase them loaded with Kicker 4 inch full-range coaxial speakers rated at 50 watts RMS. Every pair of Versa-Pods includes self-tapping screws, wire-lead grommets, poly-fill, and installation instructions. These pods are small enough to fit just about anywhere, not just Jeeps, but pretty much any car, truck, SUV, motorcycle, boat or UTV. So you can move them from one vehicle to the next - money well spent. We look at the Versa-Pods as more of a universal pair of speaker pods rather than being only for Jeepers (although they were created with Jeeps in mind). The unique shape of the pods and their flat bottom allow fitment in a lot of little nooks all over a vehicles interior and can really enhance your current audio spectrum. Versa-Pods are mirror images of each other, one left and one right. If you can not get one of the pods to fit where you want, try the other pod in the same spot and it just may work! Jeep CJs, YJ, TJ & JK Wranglers are all great for incorporating a pair of Versa-Pods. Take a look at the pictures for some ideas on where these pods will work in your particular Jeep, or whatever you are driving. Have a question about a specific measurement on the pods? Call us and we will help out. You may find that you do not need to use the self-tapping screws that are included - you may wish to use other mediums to attach the pods, such as different screws, or perhaps Velcro, double-sided tape, maybe Loc-Tite adhesive caulk. All of these can also work, depending on your specific needs. Just clean the necessary sides of the Versa-Pods with rubbing alcohol first to ensure the best bond to the plastic!*Some 4 inch speakers with very large magnets (almost the same size as the speaker cones themselves) may not fit in Versa-Pods because they may hit the interior flat-bottom - a rarity, but it can happen. If you have concerns about this, call us with the specifics on your speakers and we will help determine if it is an issue. Versa-Pods - Anywhere you want it.