How much does this cost to the nearest dollar?

Accsoon Power Cage Pro Ⅱ for iPad, Compatible with IPad Pro - 12.9 inch (Gen 3, 4, 5, 6), W ACC04 NP-F Battery Plate Adapter
Key Features Adjustable Protective Cage 10 x 1/4 -20 Mounts 2 x Cold Shoe Mounts Includes Sony NP-F Battery Adapter Supports 12.9 iPad Pro (Gen 3 to 6) Built-In Kickstand Specifications Adjustable Sliding Frame Length Adjustable Sliding Frame Width Thickness 28.5mm Weight 405g Materials Aviation grade aluminum alloy Interfaces 1/4 Screw *10, Cold Shoe *2 🏆 Use with Accsoon Seemo Special design for Accsoon SeeMo, to turn your iPad into an on-set monitor. �

Price is $139.00
Price: $139