I'm not sure... let me look at the description...
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Product Info for Leapers UTG AR15 Ambidextrous 45/90 Safety Selector
UTG AR15 Ambidextrous Safety Selector, Aluminum and Steel Construction, Reversible Short and Long Oversized Levers Finished in a Matte Black Anodization, Configurable for a 45 or 90 Degree Throw, Includes Installation Tool and Hardware, Detent, and Detent Spring