Difference between ultra-small RFID tag products

Is there a practical difference between SF parts SPX15116 and KIT16464 where both are “Ultra-small UHF RFID Tag Rain - 10 Pack”? I ordered the second one recently and the label had the other part number. The two offerings seem the same but I’m curious.

They are the same product. We updated the product from SparkX to our storefront SKU because they were so popular.