4 Pack 9971 Holes Perf Boards (No Solder Pads), 6" x 17" (152.4mm x 431.8mm), 0.1" Hole Spacing 1/4-Inch - 3 each of

1/4-Inch - 3 each of 7 colors

Frequency Accuracy: ± (2PPM + 1 d) 23± 5°C

Electrical contacts and connectors

Skill level: The Alpha III is a Beginner skill level rocket - perfect for kids who are just getting started with rocketry

and the Yellow Swallow

4 Pack 9971 Holes Perf Boards (No Solder Pads), 6" x 17" (152.4mm x 431.8mm), 0.1" Hole Spacing 1/4-Inch - 3 each of4 Pack Perf Boards 6" x 17" (152. 4mm x 431. 8mm), 0. 1" Hole Spacing Ideal for prototyping work and electronics projects. 9971 holes total (59 x 169). . 045" dia. holes on 0. 1" center. 1 16" thick material (natural phenolic). No solder pads. Size: 6" x 17" (152. 4mm x 431. 8mm)