40 cm 16 inch replacement blade for lawnmower with grass collection bag, Daye, Hecht 5410 SH : Amazon.co.uk: Garden
51 cm (20 inches) lawnmower blade compatible with Scheppach MS 173-51E (not all models) : Amazon.co.uk: Garden
Lawn Mower High Lift Mulching Blade for 20 inch Cutting Decks for MTD Columbia Yard Machines Cub Cadet Walk Behind 942-0640 742-0640 : Amazon.co.uk: Garden
Australian Made 4x Blades & Bolts fits 18" 20" Rover Rear Catcher Lawn Mowers | eBay