ExcInter Open Ended Spanner, 16x18mm Double End Silver Wrench 3mm Ultra Thin Repairing Tool for Use Under Narrow Space Conditions(1 PCS) : Amazon.co.uk: DIY & Tools
BGS 9019 | Double Open End Spanner Set | extra flat | 6 - 23 mm | 7 pcs. : Amazon.co.uk: DIY & Tools
Gedore 895 16x17 Double Open Ended Spanner 16x17 mm
Wera Joker Double Ended Ratchet Spanner 17mm x 19mm, at D&M Tools