Please Note: Due to the custom engraving required, please allow 2 business days before shipping. Not available for expedited shipping. This item ships separately from other items. TEXT WILL NEVER WEAR OFF – Guaranteed! 90+% of the other dog ID tags on the market are either printed or UV laser "engraved" (which isn’t really engraved at all). What they don’t tell you is that the text will wear off quickly, rendering the tag useless if your dog gets lost. Boomerang CollarTags™ use a unique process of DEEP, actual engraving with a high-pressure diamond tip. The text is GUARANTEED to be legible for the life of your pet—no other tag comes close. Why CollarTags™ are the Best Pet ID Tags: The text remains legible for the life of your pet – Unconditionally Guaranteed No rings or hooks required (which wear out over time) They won’t get caught on things – safer for your pet Silent – no jingling or noise Won’t discolor your dog’s coat Won’t interfere with food or water bowls Look very classy on your pet's collar Important Fit Information: This is the Standard thickness Slide-on CollarTag™ in stainless steel. It slides onto single-thickness collars (up to 1/8" thick) with a belt-buckle closure. This tag will NOT fit: adjustable length collars with plastic snaps. For those or for Martingale collars, see our other styles. We also carry tags for double-thick collars (3/16" to 1/4" thick). See here. Need help choosing the right size? See the "Sizing Guide" tab below. Still unsure? Email us right after placing your order with the subject line "Match my CollarTag size" and let us know what collar you’re pairing it with. We’ll make sure you get the right fit or follow up if we need more info. "A chain is only as strong as its weakest link." The weak link of traditional pet ID tags is friction. Rings and hooks wear out, and rubbing causes text to fade. CollarTags™ eliminate that friction entirely. With a slide-on CollarTag, your pet's ID is always secure and readable. Bottom line: If your pet ever gets lost, a CollarTag makes it easy for the finder to contact you.