Will it work on a square tube? No. The underside of the bike mount is designed for round tubes. Will the magnet hurt my phone? NO. Manufacturers have been using magnets in phones and tablets for years and now even Apple uses magnets right inside of their phone with their new MagSafe magnets. Our specially designed rare earth magnets are proven safe for all smartphones and tablets. In a product overview from MacWorld they said, "magnet-based accessories are safe to use on iPads and pose no threat of scrambling interior electronics.” Our magnets will not harm your credit cards either. Magnets will only affect spinning hard drives found in old laptop and desktop computers that are rarely found in 2021. The magnet may affect a hotel key but then again what doesn't? Will the mount scratch the back of my phone? No. The mount locks inside the case but never touches the phone. What is the purpose of the magnet? The magnet acts as another safety feature and equally important it reduces vibration so you can clearly see your phone while riding. No rattling, blurring, or twisting like some other mounts. Does the case protect my phone, and will it work when it’s not on the mount? Yes. All of our mountable cases are extremely protective and are keeping phones safe every day all over the world. Will the mount work with my existing case or cover? Yes. The mount will work with any Rokform mountable case that has our Twist lock on the back. If you have another brand of case or no case at all you can still use our mount by using The universal adapter. Does the bike mount include the leash (lanyard)? Yes. All of our bike mount kits include a quick release heavy duty lanyard that acts as a third layer of security for your phone. Plenty of our customers use and love it on an off the bike. Wrap it around your arm or wrist and prevent accidental drops. Do you supply a waterproof cover for the phone? No and thankfully all modern iPhones and Samsung Galaxy smartphones are now water resistant so there is no need for clumsy ponchos, skins, wraps, bags or covers on your phone. Take advantage of the technology that you paid for with your new phone and enjoy it with your new ROKFORM Pro Series bike mount. What other accessories will work with the case that comes with the bike mount? All of them. Not only do we have bike mounts we have motorcycle mounts, suction mounts, universal magnetic car mounts, universal twist lock mounts, golf shooter, belt clips, stands, stroller mounts, wall mounts, vehicle mounts, sport magnetic rings and more. What smartphones do you make a case for? Since 2010 ROKFORM has been developing high quality rugged protective phone cases for the Apple iPhone and Samsung Galaxy. Our full line includes Apple iPhone 5, iPhone 5s, iPhone SE, iPhone 6, iPhone 6s, iPhone 6 Plus, iPhone 6s Plus, iPhone SE 2nd Generation, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XS, iPhone XS Max, iPhone XR, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone 12, iPhone 12 Pro, iPhone 12 Mini, iPhone 12 Pro Max. For Samsung Galaxy Smartphones we offer a rugged protective case for the Galaxy S8, Galaxy S8 Plus, Galaxy Note 8, Galaxy S9, Galaxy S9 Plus, Galaxy Note 9, Galaxy S10, Galaxy S10 Plus, Galaxy Note 10 Plus, Galaxy S20, Galaxy S20 Plus, Galaxy S20 Ultra, Galaxy Note 20, Galaxy Note 20 Ultra, Galaxy S21, Galaxy S21 Plus, Galaxy S21 Ultra. What is your warranty? All Rokform products are backed by a 60-day money back guarantee and a 2-year warranty. All of our products are shipped from our Southern California headquarters and our 5 Star Customer service team based at our headquarters in Southern California is always ready to help. If it’s a warranty replacement, spare part, question or anything in between our goal is to make every customer a customer for life. If you have a problem with one our products our team is here to help. Give us a try and see or run on over and visit us in our showroom!