Made of heavy vinyl with steel end pieces. Introduced on the Blonde, Brown, and Blackface-era Fender amplifiers. Used on '65 Twin Reverb, '65 Deluxe Reverb, '65 Super Reverb, '65 Princeton Reverb, '64 Vibroverb Custom, Custom Vibrolux, Vibro-King 212 Enclosure, Blues Junior, Pro Junior, Acoustasonic Jr.
eBay