5 in 1 zinc alloy head threaded with chrome plated chestpiece. Two separate 56cm latex free tubes provide individual sound transmission to each ear. Large 6mm diameter chrome plated brass binaural further enhances sound transmission. The Tytan Sprague Rappaport Type Stethoscope is supplied with a accessory kit that includes: Adult and paediatric sized chrome plated zinc alloy bell 3 x plastic black Non-chill bells sizes 31mm, 25mm and 19mm 2 x different size spare diaphragms (1 of each) 1 x pair of mushroom eartips 1 x pair of clear PVC eartips The Tytan Sprague Rappaport Type Stethoscope is also available in 11 different colour: Black Burgundy Grey Hunter Green Light Blue Navy Blue Pink Purple Royal Blue Red Yellow See other items for all the colours or order this one and e-mail with the colour you prefer