... :--DK-93: n.w.: 4.50kg/set, g.w.: 5.00kg/set, 8 sets/ctn, ctn size: 46*33.8* ... 27 cm--DK-98: n.w.: 7.80 kg/set, g ... .w.: 9.50 kg/set ... , 4 sets/ctn, ctn size: 46*33.8 ... and simple to use and high efficiency--about 750 sets of snap buttons per hour, also the DK-95 ...