Review on Professional Valve Spring Compressor Removal and Installation Tool Kit - WINTOOLS Pro Cylinder Head Service Set by Shane Loredo

Used to replace valve seals on 94 Corolla 1.6. Tool surface quality isn't very good, especially on castings (the part that contacts the spring detent was quite uneven, although not too bad to grind, the price you pay for a budget tool). Air hoses and fittings worked well but a little rough. The crescent shaped pivot on the mount made it a lot less stable (as opposed to a full hole), but a little mechanical wire made it a lot better. I suspect this design should make the transition from valve to valve easier. If you have a helper that's fine, but if you're working alone I would definitely tie the prybar to the pole and also wire the ends of the pole so it doesn't come out of the stands. The grip is also very slippery when coated in oil, which tends to be the case. It would be better to cut off the plastic. Can't comment on how durable it is as I was working on a tiny motor with small springs and could manipulate them with one hand. This will likely make the feathers heavier, but it does require a second pair of hands. In general, if you build 1 or 2 cars, it's great. If you intend to use it regularly, you might want something better.