How much does this cost to the nearest dollar?

SUNWAYFOTO 9.45 inch M-Lok Arca Rail Mount Adapter to Arca-Swiss/RRS
Package List Safety Stop 2.5mm 3mm T6061 Aluminum main body, elaborately CNC machined with type-III hard-anodized finish ensures it’s resistant to abrasion and corrosion; Screw and T-shaped screw are stainless steel. Lightweight hollowed-out design, weighing only 4.06 oz., length 9.45 inch. Arca standard base dovetail, compatible with Arca tripod ballheads Can be mounted on M-LOK rail from the top and stabilized via two points. By using the users can mount a rifle on tripod for stable shooting experience. Dimensions 9.45 x 1.5 x 

Price is $50.00

Price: $49.99