Spring-Loaded Projectile Launcher, 10ft Range Entomology & Zoology_Entomology Supplies Die-cast body with plated brass

Die-cast body with plated brass parts anchors this cork-lined two-prong universal clamp

Two-speed ticker timer kit printing 25 or 40 dots per second on paper tape via carbon discs

Heavy-gauge steel inclined plane with built-in vertical

Adjustable locking hook positions items 110 mm from the support rod on this suspension clamp

and steel in a snap-top case

Spring-Loaded Projectile Launcher, 10ft Range Entomology & Zoology_Entomology Supplies Die-cast body with plated brassSpring loaded heavy gauge steel projectile launcher with a string release trigger, dual bore sights, and a 1 degree protractor, firing a 19mm ball up to 10 feet with less than 1cm scatter.