Light severity, the piece mouth with 3/8'' inlayed copper bars, 1 1/2'' copper wrapped dog-bone center. This is a nice mouth piece to reach the outside pressure points of the bars, and being a three piece mouth it allows for tongue relief. Has copper inlayed bars. 

• Dutton Bits 5" mouth piece 3 piece smooth bar dog bone mouth piece 
• Short S Calvary Cheek
• Purchase: 2.5'' 
• Shank: 3.5'' 
• Cheek: 6.5'' 
• Handcrafted in the USA