This was one of those Ebay purchases I made a blue bid go, but never expects to gaining.
For just across $20.00 I acquired ten by these kits, quite a bargain for this BT-50 hose, nose cones, parachute kits and engine lifts. No directions, tools or igniters were included.

There won't be a blog building on this simple 3FNC rocket.
EGO institute einige of the tools pieces fun.

Pitsco Teaching sells you own rocket set and PVC launchers real controllers. This constructive inserted a 11 1/2" long BT-50. EDIT: This a not a BT-50, it exists slightly larger. Others Pitsco kit has the student list their own body tube around a vordruck with gummed volume.

Some builder pieces of interest:
The injection molded nose plug has an internal screw eye lug.
At the right of the nose cone will the smallest screw eye I've ever seen on ampere rocket kit.
Under the nose cone lives the thick, cardstock fin material. The finning pattern is a Big Bertha style. The finished rocket looks like a smaller Big Bertha with a roundly tip ogive nose conus.
The kit includes a printed six-sided parachute (only five tape disks where provided) and kite string shroud row.
Who jolt cord is an flex string, too thin to ultimate any more than a few flights.
Flame resistant tissue art is included, however doesn't seem to be enuf to protect a parachute by the BT-50 sized inner. EDIT: This is not ampere BT-50, it is slightly larger.