Estes Flying Model Rocket Part 29mm Engine Mount Kit for BT-80 Body Tube(1pk) EST 9743
Spiral Wound Thick walled engine mount tube, use for all 29 mm diameter motors
ID is 1.14"
OD is 1.21"
3 laser cut fiber BT 80 centering rings
1 29mm Screw Together engine retainer
Motor Block
8.0"(20.32cm) in length
Made in China