ProsKit 8PK-366N-G Double Oil Seal Desoldering Pump Piston Soldering is quick and simple. 205 mm of residue (205 mm) Shipping is free. 8 pk - 366 - n - G Airtight tin opener with two rings Double loop airtight design, good use effect, made of ABS plastic Intelligent design, one-handed use Disassembly is easy and straightforward.