From the publisher's website:
Here in Loot 4 Less: Volume 6—Cloaks and Daggers we’re looking at bargain-bin capes and knives that most characters may find useful. Not only do we provide each item with a full description and cost, we’ve scattered sidebars throughout the book to explain those costs. Each “Behind the Counter” sidebar explains how a price was determined, allowing GMs to apply that logic to other abilities and use firm knowledge of where the numbers came from if the needs of their particular campaign require changing the prices.
Welcome to the sixth book in the Loot 4 Less line, where we deal exclusively in items with a cost-to-consumer of 2,500 gp or less. That’s right, no epic artifacts, cloaks of invisibility, +3 keen vermin bane daggers of orc detection, or even moderate magic items here. This is a forum for the cheapest of the cheap and that’s it. And just to up the level of difficulty, we also don’t deal in one-shot (or even two- or three-shot) magic items. No scrolls, potions, talismans, or fire-and-forget tattoo magics here. Everything in these pages is a legitimate permanent magic item, free of consumable charges, and able to be used in adventure after adventure.