ITEM NAME:10Pcs RMA-223 10cc BGA SMD Soldering Paste Flux Grease Repair Tool Acces CDT.10pcs 10CC BGA SMD Soldering Paste Flux Grease. It is the mixture of high-quality alloyed powder and resinic pasty flux, it can avoid the pale yellow residue, so u are easy to clean the board. Material: Special grease.