ExcelMark Inkless Thumbprint Pad (Pack of 3) Compact print pad contains a special inking solution that wipes away clean. Inkless thumbprint pads are an easy and inexpensive way to provide extra security and to prevent check and identity fraud. Includes: 3 Pads in Black Ink Adhesive sticker on bottom of the pad - stick it to your desk, or any smooth, clean surface 1-1/2-in. diameter (each) Compact print pad contains a special inking solution that wipes away clean. Inkless thumbprint pads are an easy and inexpensive way to provide extra security and to prevent check and identity fraud. Quantity: 3 pads in black ink Adhesive sticker on bottom of the pad - stick it to your desk, or any smooth, clean surface 1-1/2-in. diameter (each)