10 slugs for HDS68 cal.68 from Umarex 10mm balls weight 6g - Airsoft Black

10 steel balls 10mm caliber .68 for HDS68 T4E Umarex  Black color If you lose steel balls, you can order them here:  https://www.invent3d.fr/billes-acier/21-50-billes-acier-10mm.html