Accu-choke tubes handle lead, steel and all other non-toxic loads. Each choke tube is marked with a shot patterning designation as a guide.
Specifications:

Type	Flush
Gauge	12 Gauge
Choke Size	XX-Full
Configuration	Accu-Choke
Finish	Black
Constriction	.045
Chokes Included	1
Recommended For	45+ yds
Material	Steel
Approved	Lead Only
Ported	No