This is a Balsa wood sheet used for the creation of custom fins. Just outline your template and cut away excess with a hobby knife!
Basswood : Rocketarium Model Rocket Kits, parts and launch supplies
While Basswood is heavier than Balsa wood, you'll find the tight grain makes it easier to get a smooth fin. Can be easily cut, shaped, sanded, and
Basswood Sheet - 3/32 x 4 x 18
Midwest 1/32 x 4 x 24 Basswood Strip (15) [MID4401] - HobbyTown
Midwest Products 1/8 In. x 3 In. x 3 Ft. Basswood Board - Kenyon Noble Lumber & Hardware
Midwest Products 1/8 In. x 4 In. x 3 Ft. Basswood Board - Tahlequah Lumber
10 Pack Basswood Sheets 3mm 10 x 10 x 1/8 Inch Plywood Board, Thin Natural Unfinished Wood for DIY Crafts Painting, Hobby, Model Making, Wood Burning and Laser Projects
Midwest Basswood Sheets 1/8 x 3 x 24
12 Pcs Basswood Sheets 3mm 1/8 x 12 x 18 Plywood Board Craft Wood Thin Wood Sheets for DIY Arts Crafts Woodworking Scroll Sawing Projects Painting Drawing Laser Cutting Projects Laser
Midwest Products 1/8 In. x 4 In. x 3 Ft. Basswood Board - Tahlequah Lumber