The Carbon Express target nock collars are designed and engineered specifically for target shooting. These nock collars help protect the rear of the shafts from damage or cracking upon impact. 

Sold in packs of 12.

Size chart:

350 - Fits Mayhem DS & Mayhem Hunter DS in a 350 spine. Also fits: arrows with an OD of .295" - .303" including Predator 6075; Maxima Blu RZ 350; Maxima Red 350.

250 - Fits Mayhem DS & Mayhem Hunter DS in a 250 spine. Also fits: arrows with an OD of .290" to .298" inlcuding Predator 4560; Heritage 90; Maxima Red 350; Blu RZ 350.