Ordered a bulk bag of 40mm plum slate and while I understand there can be natural variations I certainly did NOT get what I ordered. When the bag was delivered I questioned the driver about the colour and size and even they said they were not sure it was the right product and that it happens alot. Now in dispute with them and the are argumentative and rude. I paid extra for plum but should have just ordered blue because the whole bag is a mix of blue and green and the size is no where near the size stated or shown on their website. Will never buy from this company again and will now be getting trading standards involved. Avoid this company!