How much does this cost to the nearest dollar?

Maclocks Ledge Security Laptop Lock Slot Adapter with Combimation Lock for MacBook Air (Silver)
With a simple turn of a screw your MacBook will have a compatible cable lock slot that will work with our security cable locks. The proprietary design does not require any adhesive or alteration to the body of the MacBook Air to attach this custom Ledge Lock.The New MacBook Lock slot can be quickly and easily installed on the MacBook Air, and it does not affect any functionality of the MacBook, particularly the opening and closing of the lid.The slim design of this extremely secure lock slot adapter integrates seamlessly with MacBook’s minimalist appeal,and is ultra-lightweight at less than 0.1lb so it adds minimal bulk and allowing for the MacBook to fit in a sleeve or bag. Smallest, most revolutionary security cable lock adapter

Price is $45.00

Price: $45.27