3 G-SAVRs: Lanyard / Tether for your Garmin Edge 520, 820, 1000, 810, 800, 510 | eBay
Amazon.com: (3 Pack) Supershieldz Designed for Garmin Edge 520, Edge 520 Plus and Edge 820 Tempered Glass Screen Protector, Anti Scratch, Bubble Free : Electronics
Screen Protector Kit for Garmin Edge 520, 520 Plus, 820 (Tempered Glas – Engine Design Group
Amazon.com: Thinvik Out Front Bike Computer Mount for Garmin Edge 830 820 810 800 530 520 Plus 520 510 500 200 130 25 GPS Compatible with 31.8mm 25.4mm Handlebar : Electronics
Original Replacement Battery 361-00043-00 For Garmin Edge 820 Edge 520 Edge 500 200 205 Edge820 Gps Garmin Edge 520 Plus Battery - Mobile Phone Batteries - AliExpress