The XPS-375-1 is a PermaSleeve? Wire Marker Sleeve made of polyolefin with matte finish. The 60087 PermaSleeve? heat shrinkable wire marker sleeve is compatible with IDXPERT? printer. Sleeve is kitted style (individually pre-cut). The B-342 PermaSleeve? PS polyolefin wire marking sleeve fits snuggly around wire for identification and protection.