what is a wet erase marker

{"cid":"91176054","title":"dry and wet erase ink liquid chalk marke,water soluble fabric marker pen,air vanishing marker pen for clothing industry","imgUrl":"https:\/\/img.chinax.com\/nimg\/f2\/01\/97f333a5249a7578115743e3f75b-200x200-1.jpg","attrs":{"Brand Name":"zhengsheng","Model Number":"m012","Minimum Order Quantity":"10000set","Delivery Time":"30days","Certification":"EN71-3\/EN71-9\/ASTMD-4236","Place of Origin":"Zhejiang, China (Mainland)","Payment Terms":"T\/T","Supply Ability":"5000000pcs per month","Packaging Details":"10pcs\/set","Type":"Marker Pen","Writing Medium":"Paper","Ink Color":"Colored","Ink Type":"Permanent","Item Name":"Oily Indelible Ink Marker Pen Permanent Marker Pen","Material":"Pp Plastic"}}