Lead free self adhesive weights suitable for adding weight to locos to improve traction or to help rolling stock travel better.  This listing is for 28 @10 gram and 28 @ 5 gram. See my other listings for different quantity.  The 10 gram weights are approx 20mm x 23mm.  The 5 gram are approx 20mm x 11mm.  These are not pliable, so need to stick to a flat surface.

The ideal weight for rolling stock  is 30 grams plus 6 grams for every 10mm length. So for a 100mm long van / open wagon the ideal weight is 90 grams. 30+(10x6)=90