Bloo In Cistern Twin Blocks Bleach with Long Lasting Anti-Limescale Cleaning, Foaming & Clear Water, 2 pack

very good, but dont last that long, or could that be because we flush a lot.... nice product, not expensive, so would recommend if you are in the market for some.

Certainly keeps toilet clean, only it doesn't last as long as stated, but would not put me off buying again.

Cleans very well. Easy to use. No bleach smell (which is good) and no scent (which is what I want). Only drawback is they don't last any where near as long as they advertise. I'm currently buying 3 packs of 2 per month for 3 toilets but I will have to change it to 4 or 5 packs per month.

Never thought I would get so excited about a clean loo. But I did. The scent is there not not overwhelming like the blue one. Just some bubbles in the pan and a faint smell of bleach but not much.I will def be using these again. They are great.Review edited as certainly didn’t last 8 weeks, more like 2-3 but still worth it and will keep buying. Toilet still needs cleaning regularly but certainly not daily like before

I really liked the concept of these bleach blocks since they do not discolor the water and leave my toilet bowl looking clean.Since using this product I have indeed noticed a noticeable reduction in limescale build up in my toilet and also have to clean it less frequently. This is much better than my experience with products that color the water for weeks giving the impression that they are still working while hiding the residue building up.Like it says on the package, it smells of bleach and foams a little when you flush which is pleasant without being intrusive. Perhaps it is because I live in a hard water area, but each block only tends to last 3-5 days which is way shorter than the advertised up to 8 weeks/pack.A general note on all cistern blocks is also that repeated use will lead to residue build up in the cistern. At the rate you go through these bleach blocks I can see you running into plumbing issues quite quickly if you keep replacing them.Cheaper supermarket alternatives already offer similar a similar cleaning experience for less cost and they also last far longer. Until Bloo fixes its formulation I cannot recommend this product which is why I gave it 3 stars.

Very good

Just pop it in the cistern and flush away! It works well, BUT it does not last more than a couple of weeks at most, however as the price is reasonable I have bought more for the two toilets in my flat.

This smells vile. I could smell it even while in bed and was making me feel sick in the end I had to fish it out of my cistern and flush my loos through. Don't know what the ingredient in this one was but its not like the blue ones or the bleach ones I'd very much avoid it!!