The decals on the left side are sized to fit 1-350 model kits.  They have been tested size fitted to Hobby Boss Type IXc as well as AFV club & Revell Type VIIc, 1-350 model kits.  The decals on the right hand side are duplicates mathmatically scaled up to 1-300 scale. They should fit Warlord Games  Cruel Seas resin surfacing U-boat model.