Back pull pattern for the inner spring instantaneous suction is strong. for Ideal for use in labs, service shops, schools (STEM home and industry. Anti-static with replaceable nylon tip and aluminum housing. Simple design allows easy one-handed use,lightweight and compact,suck the solder away easily. Good little solder sucker,have a good bit of suction,you can just onto it and use your thumb to reset and suck., Manufacturer: carotoe