GOPRO DUAL CHARGER ABSOLUTELY AMAZING CONDITION  reason for selling is due to selling GoPro as I no longer do mountain biking. Battery compatible with hero GoPro comes with extra battery. 
eBay
ORBMART Go Pro Camera Accessories Protective Silicone Lens Cap Case Cover For GoPro Hero 4 3+ 3 Sports Action Camera
Aliexpress UK
Genuine SAJFS ® Gopro HERO 7 6 5 & Hero 2018 Battery 1220mAh AHDBT-501.
eBay
Adjustable Go Pro Mount Belt Action Camera Head Strap Support Holder Headband for Gopro Hero 11 10 9 8 7 Accessories
Aliexpress UK
Do not attempt to fix anything.
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Magsafe Action Camera Support Cradle Magnet Bracket Magnetic for Go Pro Mount Holder Stand for Insta360 Gopro Hero 13 12 11
Aliexpress UK
Used very good condition. Small scratch. 128gb sdcard. Accessories and case. 3 batteries and charger. Diving case.
eBay
GoPro Hero 7 Black Original Special Bundle Action Camera Go Pro Hero7 Sport 12MP Photo Live Streaming Cam 4K 60fps 1080P 240fps
Aliexpress UK
This item is being sold strictly as-is for parts or repair. Heavy signs of use and wear. Ideal for spare parts, repair attempts, or technical use.
eBay
CPL ND8 ND16 ND32 Polarizer Filter for GoPro Hero 12 11 10 9 Black Go Pro Red Color Lens ND Filter Kits Camera Accessories
Aliexpress UK
When you finish recording, you can play the video in the GoPro Quik app. The HyperSmooth video stabilization automatically smoothes shakes in the image material. GoPro subscription required. GoPro subscription is available in selected regions.
eBay
For Gopro Accessories Bike Aluminum Mount Bicycle Handlebar Motorcycle Holder for Go Pro Hero 13 12 11 DJI OSMO Action 4 Camera
Aliexpress UK
Waterproof For Up To 45m - For GoPro HERO 8 - Front LCD Screen View Window.
eBay
For Gopro Hero Accessories Adhesive Mounts Curved Flat Sticker Sticky Pads Helmet For Go Pro Insta360 X3 Dji Osmo Action camera
Aliexpress UK
Genuine Digicharge high quality hard carrying case for action cameras. Small size ideal for adventures where you want to travel light, comes with a convenient carabiner to attach it to your ruck sack or clothing. High quality case with EVA foam insert which provides compartments to securely hold your action Camera and accessories like waterproof case and bracket etc. Mesh accessory pocket provides storage space for cables bike handlebar mount and other action cam accessories and keeps them in good condition Offers great protection for your action camera and accessories from scratches, water ingress, dust and impacts Comes with a convenient carrying handle - Lots of storage but still compact and light, fits into backpack or hand baggage Middle divider protects your camera .
eBay
Ulanzi Tripod Base Mount Adapter For GoPro Hero 13 12 11 10 9 8 7 for Go Pro Insta360 X2 DJI Pocket 3 Action Camera Accessories
Aliexpress UK