The TE Connectivity S02-12-RCS453 is a wire-to-wire solder sleeve with a transparent blue color. It is RoHS3 compliant and comes in a standard package of 1000 units.
TE Connectivity B-155-9003 SolderSleeve is a wire-to-wire splice with a 0.180" (4.57mm) expanded inner diameter and 42.04mm length, housed in a transparent clear heat-shrinkable sleeve.