★ Weltec ConCool F Sample 7ml x 20 bottles Use by dropping 5-10 drops of this liquid into 25-50ml of water, so I think it's a convenient size for carrying around. ★ Fluoride coating toothpaste gel Weltec Gel Coat F Sample 12 bottles x 2 No abrasives or foaming agents are added. * To offer at a low price, it will be shipped in simple packaging. We cannot accept exchanges or returns due to leakage, etc. Please purchase if you agree.