Features: 40 marking refills in 4 colors which can totally meet your DIY needs. 4 colors heat erase pens refills of your choice white red blue and black. Please test on the fabric before use. Some fabrics are not suitable. A quick touch of the iron and the marks are gone no residue. There are caps in each refills. They can be kept well when unused. Convenient to measure and cut out a lot of squares easy to use. Using Tips: 1. The product can disappear when the temperature reaches 60℃ or so and can be cleaned after washing. 2. Used for temporary points and marking of shoes clothing and leather. 3. White is for dark leather and cloth red blue and black are for light leather and cloth. 4. White will recolor at -50 ℃ blue red and black will recolor at -10 ℃. Specifications: Material: Plastic Color: White Red Blue Black Size: About 5x3 mm(Outer Dia.*Inner Dia.) Package Included: 40 xHeat Erasable Pen Refills Note: 1. Due to the light and screen difference the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.