Thunder Tiger 1077 3870 Blade Balancer FEATURES: Multi-function balancer is suitable for static or dynamic balancing Ball bearing supported seesaw bridge has level for easy adjustment and w 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 manual jxs 04/05/11 ir/jxs