1, the product of a single size 120 * 25 * 12 mm. 2, display boxes, packaging, 25 PCS into one box, each box number 400-600 PCS, can decide with customer. 3, ABS, AS new material injection molding, the quality is not generally small businesses can replace. 4, products are ISO22702 certificate authentication. 5, the factory has its own inspection, to do the commodity inspection.