Quality and reliability in one convenient package Replacement of the eartips on all Littmann stethoscopes 3MLittmann® Stethoscopes offers the high quality that medical professionals expect and the same demanding standards meets each replacement part and accessory. 3M Littmann® Stethoscope Spare Parts Kit is conveniently packaged in kits that correspond to our stethoscope models. Suitable for all Littmann stethoscope, contains two pair Snap Tight Soft-Sealing Eartips (1 large, 1 small). Snap-tight, soft-sealing eartips conform to individual ears for an excellent acoustic seal and comfortable fit. Eartips snap firmly onto the ends of the eartubes and, for safety, require a significant effort to remove.