These HLBGB Bands are perfect for machine or hand setting, as well as for putting a head on the top, or simply cutting a design into it.  These bands have the height the same for the first 1/3r of the band, and then slowly start to get thinner as it gets to the bottom (please note, that Kemp can also cut these to a specific mm length on the top).  By Kemp pre-cutting the metal out for you, you save time and money.