Quality Materials: This stamp positioning tool is made of quality acrylic material, smooth , not easy to break or scratch. Metal hinges are stronger, to that you can use for a long time Product Size: The inner size of this stamp positioning tool is about 11x15.5 CM, the outer size is about 15x19.5 CM, including 1 positioning part and 2 pieces of acrylic thin sheets, the size of each small square in the grid line is 5x5 mm Unique Design: This stamp positioning tool for the flip type aids, the stamping process just a flip and a close. Clear grid lines and measurements allow you to stamp more accurate, improve your efficiency Wide Applications: This stamp positioning tool is great for DIY on cards clipboards stamps albums and other craft projects Gift: This stamp positioning tool is a gift for arts and crafts loving family and friends on birthdays holidays parties, they love it Key Feature:Easy to Clean: This stamp positioning tool is easy to clean with water, soap and towels, and should be rinsed before each use to maintain long term use. Product Name: Stamp Platform Size: Inner Size: 11x15.5cm or 4.33x6.1 inch Outer Size: 15x19.5cm or 5.9x7.67 inch Colour:transparent Material:Acrylic Package Contents: 1 x Stamp Platform set (Includes 1 Positioning Tool and 2 Acrylic Sheets) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.