Pink pen : Automatically disappear or wipe off with water in 1-7 days Purple pen : Automatically disappear or wipe off with water in 2-14 days Blue pen : Writing trace does not disappear automatically, but it can easily and quickly erasable by water The water soluble ink can disappear automatically
Technical Details
Product Details
Product Dimensions
Package Dimensions Width : 4.75 inch Height : 0.25 inch Length : 7 inch
Item Weight: 1.6 ounce (View shipping rates and policies) Shipping Weight: 3.2 ounce (View shipping rates and policies)
