20PC Piece Mazda Prot&eacute;g&eacute; 5 626 6 3 MX5 MX6 RX8 RX7 CX7 CX9 Miata Mazdaspeed Light Weight Aluminum Racing Lug Nuts 12x1.5 Black 4 rims,each rim need 5 lug nuts.you will receive 20 pieces of lug nuts in total A7075-T6 Forged Aluminum, 100% Brand New Racing Lug nuts 12mm x 1.5 Pitch Thread Light-weight, 66% Reduction in Weight,No Special Tools Required for Installation Uses a Regular 19mm Socket,Uses a Regular Oem Tool That comes with car