Spring from water sprinkler head prevents locking collar from slipping down & causing unintended launches. FAR SUPERIOR to plastic spring or duct tape. Cost $2, 100% reliable, easy to make, no special tools.
- 10 жыл бұрын
Improved Water Bottle Rocket Launcher, Clark Cable Tie, Metal Spring for Locking Collar
- Рет қаралды 12,354
Пікірлер: 7