Bulldog Gear - Box KettlebellsOur Bulldog Gear Box Kettlebell is the leading cost effective kettlebell, without any compromise on quality. Sold as Singles Ranging from 4KG to 40KG, the updated model now comes with improved features including: Colour coded weight identification bands on handles. Embossed weight identification in KG LB. Embossed Bulldog Gear Logo. The Kettlebell is a heavy use product in any gym and so weve worked on a great matte black finish to provide a tacky