1. Support motherboard maintenance, chip removal, CPU, IC glue removal, etc. 2. It is made of high temperature resistant synthetic stone. 3. Accurate notch, fast positioning, stable and non-shifting. 4. Adopt new precision mold, tight and not loose. 5. High temperature resistant synthetic stone, neat notch, main board/chip neatly fit notch. 6. Note: only for iPhone 11.