This is a compact,spring loaded desoldering pump. It is a very useful tool for desoldering components from PCBs. ProsKit DP-366D Desoldering Pump with suction capability 35 cm-Hg. It\’s made of ABS plastic. Specification Piston with double oil seals: no air leakage guarantee Handle with soft foam provides comfortable, non-slip operation Compact and lightweight design. Anti-rust spring Spring loaded piston Overall Length: 8-1/4\” Quick and easy solder residue clearance Material: ABS plastic Suction capability: 35cm-Hg Size: 30x30x205mm(1.18\”x1.18\”x8.07\”) Weight: 85g Shipping List Desoldering pump x1