9056-100-B,ROUND SPACERPLAIN BRASS1.25 IN O
9056-100-N,ROUND SPACERNO FINISH - NYLON1.2
9056-100-S,ROUND SPACERPLAIN STEEL1.25 IN O
9056-100-SS,ROUND SPACERPLAIN STAINLESS STEE
90561-4DC,PROFESSIONAL EARMUFF
905-615,SPACER TUB 0.615"X0.25 OD 0.147
90561-6C,PROFESSIONAL EARMUFF
905-620,SPACER TUB 0.62"X0.25 OD 0.147