WJX Cartridge Needles is patent design make the needles run extremely stable and smooth, have the Lowest Tin solder to avoid chemical process to ensure safety.
Special Rebound - there is four special elastics that lighten the pressure the needles bar
Medical Grade LG PC - made by PC polycarbonate, Polycarbonate is colorless, transparent, heat resistant,impact resistant.
Original Design - WJX patent cartridges design achieve better hitting skins performance
Mix Size:1205RL,1207RL,1005RL,1009RL,1007M,1009RM,1011RM,1207HRL,1213RM-1,1215RM-2 each 2pcs