When clamping the part of plastics with pliers and connecting it, it cracks as soon as it is caulked and half of the ordered items cracked. I always use makers, but never cracked. The metal part shorted from the broken part, the fuse flew and it became a serious complaint.
Since the size is small and the place where the wiring is cramped is also narrow, contact failure does not occur even with thin wiring of audio kind, and it looks refreshing in white. It is very unpopular for people with big hands and fingers, little heart. You can recommend it to those who work with the feelings of the product or with the customer's feelings.