I just thought I would share my current experience with these in case other people were thinking of giving them a go. I bought them ages ago to try with a loan horse who napped towards the exit when competing but never got the chance to use them as she went back to her owner. However I got my own horse in September who likes to throw her toys out of the pram by walking backwards and doing mini rears/ spinny things to get out of working. My instructor told me to boot her forwards when she trys to do this and this has worked to an extent but I wanted to try and prevent her from doing this before she got to the stage of napping hence I thought i would try the blinkers and after two days usign them I have to say they are helping. She stll tries to nap but so far has not tried the walking backwards/ mini rear thing and seems a little more focused on her work. the theory is if a horse cant see where they are going they wont walk backwards/ rear. I know they wont work for everyone and I have heard people have had probs with them but my horse seems to of accepted them so might be worth a try for other people having problems??? I dont know much but perhaps it might help someone else with their horse?