Rocket Parts > Solid Bulkheads & Transitions   BT20 x 1.00'' Balsa Bulkhead Add a payload compartment to your BT20 sized model rocket! Precision turned balsa! $ 1.10          Available: 1      More Information      Quantity:     BT80 x .125'' Lite Ply Bulkhead Fits inside a BT80 body tube. $ 0.89          Available: 8      More Information      Quantity:     Estes Designer's Special #1980 Build and fly your own designs. The Estes Designer's Special is just what you've been waiting for! A BIG box with more than enough parts to build 8 complete flying model rockets!! Includes over 100 genuine Estes model rocket parts. Retail Price $ 79.99 $ 64.99          Available: 1      More Information      Quantity:     Sunward BT55 x 1.50'' Balsa Bulkhead Solid balsa with a smooth sanded surface. Great for adding a payload compartment to a BT55 sized model rocket. $ 2.50          Out of Stock      More Information Sunward BT56 x 1.50'' Balsa Bulkhead Solid balsa with a smooth sanded surface. Great for adding a payload compartment to a BT56 sized model rocket. $ 2.50          Available: 4      More Information      Quantity:     Sunward BT60 x 1.50'' Balsa Bulkhead Solid balsa with a smooth sanded surface. Great for adding a payload compartment to a BT60 sized model rocket. $ 2.50          Available: 4      More Information      Quantity:     Sunward BT70 x 3.00'' Balsa Bulkhead Solid balsa with a smooth sanded surface. Great for adding a payload compartment to a BT70 sized model rocket. $ 3.88          Available: 3      More Information      Quantity:     Sunward BT80 x 4.00'' Balsa Bulkhead Solid balsa with a smooth sanded surface. Great for adding a payload compartment to a BT80 sized model rocket. $ 5.75          Out of Stock      More Information