Professional cleaner kit for vacuum pipe pins and sockets that can remove oxidation coatings and dirt and restore vacuum pipe equipment. Compatible Terminals: MT vacuum pipe pins and sockets (such as 12AX7, 6BQ5, EL82, EL83, EL84, etc.), ST vacuum pipe pins and sockets (300B, 2A3, 845, 211, etc.), TVs, VTR antenna F-shaped terminals, universal tone arms and Phono cables, BNC terminals, etc. Set Contents: 3 x φ1 hole cleaners, 2 x RCA jack φ1 x thin pins, 1 x RCA plug, 1 x SP banana, 2 x outlets and plugs