Instruction: 1.Please notice that check product appearance if it is obviously deformative or attached foreign matters. 2.It must be kept in high temperature autoclavable sterilizer with 15 mins , and then dried for 30 mins. 3.put the stripper in coreect way with contra angle /manual grip . 4.the stripper will be placed on the interproximal teeth lightly stroke to cut and grind 5. in operation , if the stripper was broken or droped at ground, should replace a new one in time . 6.After operation , the stripper should be cleaned up completely and put in dry conditions.