Vacuum Tube Display Stand Holder for 4 pin socket: 300B, 811, 45, 2A3
(1)Six (6) Display Stand Holder for 4 Pinvacuum tubes fits ( 300B, 811A, 45, 80, 2A3, etc.) Two rows that hold 3 tubes in each row, 6 total tubes. Six (6) vacuum tube display stand Holder for 4 Pinvacuum tubes.