Available in 26 different sizes, with a half progression per size, in the hard version. For both bands lines, interior micro-etched retention is available, made by a sandblasted process that ensures maximum retention. Available in bags of 5 pieces per size and tooth, or in kit of 104/248 pieces. Kits are available for the upper or lower side and contain both right and left bands. - 26 different sizes - Half progression per size - Hard version - Interior micro-etched retention (sandblasted process) - Bags of 5 pieces per size and tooth - Kits of 104 or 248 pieces - Kits for upper or lower side, including right and left bands