These are easy to install and operate perfectly smooth. However, they do not snap the screen shut and do not keep it shut like an original Nintendo hinge would. I'm subtracting a star because there was no warning in the description about that. I bought these because the original hinges in my SP were not perfectly smooth due to wear and tear, so these are a step up in that department, but also a step down due to not keeping the screen securely shut. If you need an SP hinge, an original Nintendo hinge is best.
