The Quad Lock® Bike Mount is the lightest, strongest and most secure smartphone bike mount on the market.Secure Mounting:- Featuring a patented dual-stage lock, you can ride with confidence over bumps and jumps knowing that your smartphone isn't going anywhere your bike isn't.Quick To Attach / Detach:- Simply twist and lock to view apps such as Strava®, MapmyRide or Apple® maps as you ride. Detach just as easily so you don't miss a photo opportunity or important phone call.Sleek Design:- At just 23mm tall and 35mm wide, the Quad Lock® Bike Mount fits seamlessly onto the stem or handlebar of your bike.- 1 x Quad Lock® Bike Stem Mount- 2 x EPDM mounting o-rings - 2 x Nylon zip ties Specifications: - Suits bar sizes 25-40mm in diameter- Glass filled nylon / polycarbonate construction- Stainless steel fasteners- 23.3mm tall- 35.5mm wide- 50mm long- Compatible with all Quad Lock® cases and Universal Adaptors