our production is a new kind of tyre pump developed by professional for many years.the specification of the production is 20cm*28mm.and the used material is pvc-steel.the outside tube is yellow and the inside one is white.there is an added plastic package out of the production.our production is of attractive design,stable structure.and it is convenient and durable,economical and healthy.what"s more it can be used for the bicycle,electric bicycle,motorcycle and so on.the biggest air pressure of the production can be 3 or 4 standard atmospheric pressure.of course it can be very suitable for the orders,women and children.本产品轻便.耐用.美观.多功能.Zui大可达8个大气压.是电动车.自行车.等非机动车车辆车胎冲气的.