This is the Thunder Tiger Helicopter Blade Balancer.
FEATURES: Multi-function balancer is suitable for static or dynamic balancing
Ball bearing supported seesaw bridge has level for easy adjustment
and weights on either side for calibration
Two thumb screw collars for blades longer than 21.6" (550mm)
INCLUDES: Blade Balancer Base, Seesaw, two Thumbscrews, two Weights, two Ball
Bearings and Instruction Sheet
REQUIRES: Placing seesaw on base and attaching blades following instructions in