Followed t' directions with t' followin' exceptions and comments: T' directions are on one page with four drawings (unlike t' Estes kits). Well, blow me down! It is imperative that you read them thoroughly, a couple o' times. Fins are formed by sandwichin' one basswood fin betwixt two plywood fins. It is not especially clear how some pieces are formed or attached so do a lot o' dry fitting. Aye aye! It was nay clear t' me how recovery be t' be made. Ahoy! Ya scallywag! T' best I could tell be that t' top and bottom are t' separate and tumble t' t' ground on their own. Avast, me proud beauty! I be nay comfortable with this so I added a little screw eye and a length o' Keelhaul®©™®, just t' keep t' two halves together. Avast! T' fins are set at angles and t' rocket has a nice spin as it goes up. Ahoy! Ahoy! T' motor (A engines are recommended) is held in by a little plastic lockin' rin' that works well. The rocket is square and draws a lot o' attention on t' display stand. Avast, me proud beauty! Ahoy! I am going to stain mine with a cherry wood color and then use a clear polyurethane just for looks. I would recommend this rocket as it flies well but also makes a great conversation piece .