Balloon Hovercraft Problem Solving Kit, Science and Engineering Project that you Design and Build Yourself The 60/40 rosin core solder

The 60/40 rosin core solder uses a classic tin-to-lead alloy ratio complemented by a RA-like flux core

Professional quality

and folds into an easy-to carry chair

DC Current: 400 mA - 10 A (1

Balloon Hovercraft Problem Solving Kit, Science and Engineering Project that you Design and Build Yourself The 60/40 rosin core solderThis is a fun and challenging kit. Make the balloon power the Styrofoam square on a cushion of air! It's tricky, but you can do it. Requires placing the hovercraft on a flat, smooth surface to work correctly. Includes Styrofoam blank, balloon, fins and other hardware (Ages 12 & up). This is a fun and challenging kit. Make the balloon power the Styrofoam square on a cushion of air. Requires placing the hovercraft on a flat, smooth surface to work