New Hornady Lock N Load Bullet Tube 40 S&W 10mm Fast and flexible system Original box damaged from storage. Its BBCOR certified Black Gold Gray Its BBCOR certified Designed to teach correct shooting form with sound and light Helps develop proper elbow shooting position at a 90 degree angle Neoprene arm band with hook and look fasteners meaning the bullet will only be fed upon contact with the case 40 S&W 10mm Fast and flexible system that increases loading speed on any compatible progressive reloading press with 7 8 14 thread die stations Bullet tubes can fit 40+ bullets depending on caliber Works with standard progressive press when using the Hornady Lock N Load bullet feeder Eliminates the need for bullet feeder hopper Feeder dies are case activated