---if you only have the stainless-steel & velcro finger electrodes for gsr/eda, all 4 instrument manufacturers offer either snap-in adapters or new leads with snaps.
---don't buy replacement 'white stickies' from the instrument manufacturers: buy fresher ones from where they buy them from! (PEOA members: a list is available to you that contains several direct distributors of 'white stickies')