Sanding Sticks (Ultra Fine) Product Type_Marble Run Fits 3S 800–850+ mAh LiPo

Fits 3S 800–850+ mAh LiPo batteries for a wide range of performance and flight times

Use this Overdrive set gear to increase the gear ratio for better enhancement of front end speed over the stock gearing

Six walls per package

Cast molded metal with polished finish

Sanding Sticks (Ultra Fine) Product Type_Marble Run Fits 3S 800–850+ mAh LiPoDetails: A sponge type file that uses highly durable cloth. Unlike a paper file, a cloth file works great for curved surfaces as well as flat surfaces. Printed on the cloth of each file is the grit as well as a color that corresponds with the grit. Super Fine assortment includes 1 pc of 2000 grit, 1 pc of 4000 grit, and 1 pc of 6000 grit, 1 pc of 8000 grit and 1 pc of 10000 grit. Convenient set for surface polishing. Approximate size of each piece is