Trying to find the correct fork seals for the bike. Bike is up for MOT this monday and need to get them ordered as im leaving the bike in for repairs when all the parts i've ordered come. This is the last thing i need to order. found a few online but they're all different measurements example:

50x34x7mm
16x28x7mm
14x28x7mm
6.5x14.5x7mm

Can anyone point me in the right direction?