シュレッドネック弦交換グッズの買取情報

It seems you are referring to a product, specifically a "Shred Neck" tremolo block for guitar string changing, identified by the code 4519581029240. This item is likely designed to make the process of changing guitar strings easier and more efficient.
If you need more specific information about the product, such as features, how to use it, or where to buy it, please let me know!