The Loose Swept Back bit is 7 1/4” long and has a forward mounted mouthpiece which engages quicker than a traditional type of mouthpiece.The 5 1/8” medium port is mild, but allows for ample collection and break at the poll. Port  measurement's of 1 3/4". 

Professional Choice

Loose Swept Back

Medium Port Bit

7 1/4” long

5 1/8” mouth 

Port: 1 3/4"