Metal, not plastic like the cheap ones on other sites.
Fits Sanwu laser pointers (except not the Pocket models) and also fits focusable Model 900s (like the ones that are sold on this site), but these do not fit my Model 920s, 301s, 303s, or the unfocusable Model 900s found on other sites.
These fit Thor M2/H2 lasers, but not first-generation Thors. However Thors usually come with these caps included so it isn't necessary to buy them again.
