Lee's Tackle Rod Butt Extender f/Standard & Heavy Swivel Base Rod Holder. Made of pure stainless steel. Used on short-butt rods and heavy-duty rod holders and will now fit in heavy swivel base rod holders.Sold as a single Specifications for Lee's Tackle Rod Butt Extender f/Standard & Heavy Swivel Base Rod Holders: Manufacturer: Lee's Tackle Fabric/Material: Plastic Size: One Size Package Contents: Lee's Tackle Rod Butt Extender f/Standard & Heavy Swivel Base Rod Holders Lee's Tackle RH5999-9002: Rod Butt Extender f/Standard & Heavy Swivel Base Rod Holder