RTS 240mm Wide Hinge Soft Close Toilet Seat w/ Quick Release 

https://www.replacementtoiletseats.co.uk/ourshop/prod_7281853-RTS-240mm-Wide-Hinge-Soft-Close-Toilet-Seat-w-Quick-Release-84342.html         

• Made of Duroplast

• Slow close

• 1 button quick release

• Width 376

• Length 451mm lid

• Adj length 430-455mm

• 240mm max hinge reach

• Also available in a 230mm hinge:

• https://www.replacementtoiletseats.co.uk/ourshop/prod_5310344-RTS-230mm-Wide-Hinge-Soft-Close-Quick-Release-Toilet-Seat-60113.html

*all hinge measurements are taken from the centres of the holes in your toilet pan

These seats come with their own hinges, please remove any existing hinge plates before installation. Suitable for close-coupled, back-to-wall and wall-hung toilets where underneath the pan is not accessible.