 So when do you use B-Flex and when do you use B-Strong? Who needs which one? Well, let's start with B-Flex. B-Flex is a very flexible gel, it's very lightweight, and it is designed specifically to bend with the natural nail. You will apply this on clients who are not used to gel nails, clients who have very flexible but also very short nails and who want to keep this elasticity because it's what they're familiar with. For clients who have a more active profession like they're working in a restaurant, they have their hands in the water a lot and they bump their nails a lot, they will need a stronger gel. Or clients who have a longer nail or maybe also want to have a nail extension, they will need B-Strong. So your typical gel client, you will use B-Strong and for people who have never had gel before and who want to keep this natural feeling, you can use B-Flex on the condition that the nails are short. Then we have the category in the middle, the soap polish clients, the semi-permanent clients. These are also clients who are used to the feeling of their natural nails, so these clients would also be suitable clients for B-Flex.