The M-159B-RT is a straight soft replaceable tip 4.45" long tweezer with a tip size of .04" x .038". These miniature straight soft replaceable tip tweezers have very high rigidity, excellent tensile and flexural strength, fatigue and creep resisistance, and temperature resistant to 249°F. Carbofib™ is a polymer based material with 30% carbon fibers added (conductive 10² ohms/sq). The bodies are made of anti-magnetic Neverust® stainless steel (AISI 316L). They are excellent for handling delicate items.