Koprez is hopeless and failed on every front
I cannot comment on the product as more than three weeks after my order being paid for, I have not received anything, and Relay the courier they use in UK, having said it had arrived with them, now say it hasn't and they don't know when it will, they say perhaps another 7 to 10 days. Koprez customer service is simply appalling, just a waste of time. The company presents as being based in Wisconsin USA but I think this is a ruse and it is a Chinese company based in and sending from China. Emails seem to be pointless and go unanswered so I called. You only ever get an answer machine and the eventual very unhelpful reply seems to be from someone in China. The first order they say was lost by the courier but I never received a dispatch confirmation so that doesn't add up. Maybe the sleeves are good but Koprez are useless.