They are solid. Not too long, they exceed 2 to 3 mm of the finger. Easy to install thanks to a small appendage that asse and that file easily. I wear them for a week and no worries. The adhesive is effective even if not very practical to ask (hard bottle). By cons, small tip: make sure to dry your nails before (no cream, dissolving ...) and have a lime blow on your nails before the glue sticks better ca.