i have been in dozens of stores looking for an inexpensive microscope to check out my cultures,including the goodwill stores,savers etc for a used one.but all i found used was on craigslist for$ 300.00. to my surprise there were 10 new in the box vivitar 300x/450x/600x microscopes selling for 12.99 each right at the checkout at savers.i had a 30% off coupon so i bought the whole load in case a fellow reefer may also need an inexpensive scope.so i have 8 left for $10 each,sealed from factory. i hope this post is ok in this forum.they have a yellow light bulbin the unit that works fine,but im sure it can be changed to a white bulb if you wanted to.it comes with 8 slides tweezersslide covers and 2 collection vials.good stocking stuffer also