Comidox 400PCS 6mm Steel Balls, Slingshots with Marbles Ball Beads

Product description： These ball bearings are precision engineered, fine workmanship, suitable for all slingshots and catapults. Slingshot professional marbles, industrial, bearing, machinery and other demanding can not be used. This steel ball is a Class 2 steel ball and has no hardness and cannot be used for precision tubes. Children under 14 must not touch. Material:Carbon steel Diameter: about 6mm Note: Manual measurement, with small error. Please check size in detail before purchase. Package Includes: 400PCS.