How much does this cost to the nearest dollar?

LICHIFIT Professional Hand-held Spot Welding Pen Adjustable DIY HB-70B Battery Welder Pen for 709 Series Spot Welding Machine
Specifications Model solder pin pitch pen and cable length approx. cross section 16 pin size pulse current adjustable voltage weld thickness 0.2mm Package includes 1x Spot Welding Pen Ergonomic handle design, one-handed operation, convenient to use. Have multiple cooling holes to cool the temperature when using the pen. Anti-slip and anti-oxidation plug, quick and easy plug, nice for carry and storage. Adjustable spot welding distance, from 2mm to 7mm. The max welding thickness 0.2 mm indicates the thickness range of all alloy items it can be weld, for nickel or nickel plated steel, the max range

Price is $49.00
Price: $48.99