All flashlights arrived in perfect working condition. Switches work OK, both momentary and constant-on. Nice fit & finish overall (no burrs, misalignments or manufacture defects of any kind). LEDs are well centered, beam is tightly focused and without major artifacts (everything as expected for this type of LED and flashlight body). Beam tint is rather neutral (doesn't lean towards purple, as in other similar keychains), which is a pleasant surprise. Plastic housing is sturdy PEHD (as far I can say) but colours are not so bright and clear as illustrated on the product page. Size of the flashlight is smaller than I've expected (check the specs). A simple swivel between existing split rings would be welcome addition. To sum up: excellent value and highly recommended buy!