these work well [SEP] i make my own hydrogen peroxide based laundry stain remover which is sensitive to light so these bottles are perfect the bottles themselves are nice thick glass and come with a sprayer nozzle for each bottle as well as screw on caps and cute chalkboard labels the sprayer nozzles feel a bit cheaply made to me but they do work quite well i would like to see the tops be made of nicer plastic but for the price i would recommend these