How much does this cost to the nearest dollar?

FOROIRON 100 Pack Smart Shield Nail Guard for Wire Cable Protection,Nail Guard for Electrical Wiring Ceiling Board Studs
Function Our smart shield nail guard designs for wire and cable to pass through the interior of the board stud Safely. Preventing Electrical Fires caused by Arc-Fault Conditions, Avoiding cable from damage High Quality Our nail guard is made of steel, preventing direct strikes from nail guns and screws Easy to Use Our nail guard for wire design with pointed prongs, easy to fix it Occasion Our nail guard for cable is suitable for Electrical Wiring, Ceiling, Interior, Wall, Wooden Post, Board Stud Package Include 100 Pack 1-1/8 inch diameter cylindrical nail guard Quality Guarantee If there is any quality problem, please feel free to contact us. Refund or Replacement

Price is $40.00

Price: $39.99