TIENLY FOUR WAY ROTARY TEFLON SPRING GUIDE V2

-PATENTED FOUR WAY SELF-ROTATING DESIGN
-FOR HIGH SPEED/ULTRA HIGH SPEED MOTOR
-EFFECTIVELY AVOID DEFORMATION OF THE SPRING DUE TO HIGH SPEED SPINNING
-REDUCE FRICTION AND RESISTANCE TO IMPROVE MOTOR'S EFFICIENCY AND POWER
-PREVENT BREAKING OF GBOX DUE