ECG/EKG electrodes adapter cable , 4mm banana pin to grabber ( to better connect to snap electrodes , or other electrodes)  , bag of 10

6.5 inch ( 17 cm ) long 

Bag of 10 cables 
Used for connecting between 3mm din pin to snap electrodes .  will not works with 3mm pin ( please see 2nd picture for the difference of 3mm needle and 4mm banana pin )