uxcell Bank Office Shcool Plastic Round Case Finger Wet Sponge for Money Casher Blue White Used by bank tellers, cashiers, mailroom clerks and more. Nontoxic, odorless, nongreasy formula. fingertips for more accurate, easy counting, paper sorting and filing. Size: 83 x 23mm/3.3" x 0.9"(D*T) Just put some water in this sponge finger wet device, press it and you can count money easily.