Light to medium severity. Three piece mullen relief piec with 5/8'' center ring, allowing limited reach to the outside prssure points on the bars. This is a kind bit achieving nice lateral movements. Copper inlayed bars. 

• Dutton Bits Three piece lifesaver mouthpiece: 5" 
• Old cowboy short shank with a large loose ring 
• Pre-signal rein slide 
• Purchase Measurement: 2 3/4" 
• Shank Measurement: 3 3/4" 
• Cheek Measurement: 7" 
• Made in the USA