Built for me by Mike Fisher of Fisher Aerospace (Binder Design). The motor is 32" long (6X 4.5" grains), in "Cosmic Anodizing". The nozzle is designed with a .8215 (#52) nozzle throat. Included are thrust rings, thrust washer, and matching disk style bulkhead. The motor is in new condition, never having been flown. Asking $250 shipped (continental US only)! The first "I'll Take it" followed by a PM gets the motor. I accept a money order or paypal (+3.5% fee).