Estes EST3181 BT5-BT20-BT50 Engine Mount Parts/27pc

Includes 27 parts to build engine mounts. Perfect for the do-it-yourselfer!
27 Pieces
3 each. BT5 body tube. 2 inches long.
3 each. BT5 yellow engine blocks.
3 each. BT5 mylar engine hook retainer rings.
3 each. BT20 body tube. 2.75 inches long.
3 each. BT20 engine blocks.
3 each. BT20 mylar engine hook retainer rings.
3 each. BT50 body tube. 4 inches long.
3 each. BT50 yellow engine blocks.
3 each. BT50 black engine hook retainer rings.