These were very handy. No measuring. Just pop in the wash and let it do its job. Unfortunately can't be purchased in Australia that I can find anymore. Couldn't even find in another country. Why when something works it gets discontinued.

After using a power shot gel cap, some items in my wash had a bright pink stain which is unable to be removed. Reckitt and Coleman deny any problem saying that I used it with the wrong fabrics -- 100% cotton and poly cotton blend.

Be very wary.

I used these with my husbands very old very dirty work clothes. They removed most old stains, and I think the ones that weren't removed will never be coming out. Even white towels that weren't so white anymore look like new again. The powershots are a must have in my laundry now.
Easy to use.