The solder sleeves B-050-00, B-050-01 and B-050-02 are made of a transparent clear heat shrinkable tube of cross-linked polyolefin, a solder preform with flux and two meltable sealing rings. The transparent heat shrinkable tube provides inspectability and protection of various levels of environmental protection. The fluxed solder preform allows a highly controlled and replicable soldering process. The meltable sealing rings on each end of the solder sleeves makes a fully insulated, protected and strain-relieved solder connection. The solder devices of the Series B-050 ensures high-quality electrical and mechanical performance. Solder sleeves provides a reliable termination and reduces rejects and field failures. Ask the specialists at Raytronics for details and prices. Many solder sleeves are available on stock.