In order to prevent scrapping spool sleeves as a result of dirt accumulation and/or damage of the identification in a spool sleeve having several interconnected layers, especially formed by strips, whose outermost layer carried until then an optical identification (bar code), the invention provides that the inner layer is fitted with a notch (8) in which a correspondingly formed transponder (2, 4, 6) is embedded whose mass is at least approximately the same as that of the piece of strip that has been cut out so that no unbalance between the sleeve and the transponder will arise.