Barbecues & Outdoor Cooking Equipment
Magma A10-090 3/2-Inch Kettle Grill's Round Rail Mount
Fits standard round rails of 3/2-inch (38 mm) Designed to fit any angle railing Detaches for storage without tools leaving no hardware on the rail
https://www.bizrate.co.uk/barbecues_outdoorcookingequipment/magma-a10-090-3-2-inch-kettle-grills-oid10151311028.html