Printing tongs are what are used to handle prints when they are being immersed into chemistry. They are available in stainless steel, plastic or bamboo.
A set of tongs should be dedicated to each particular chemical. An ample supply should be on hand. Tongs should be considered disposable items but as a matter of course should be thoroughly washed after each session.
Impurities can remain on the rubber tips and contaminate images the next time you print. It is important when using tongs not to dent it. Sufficient pressure should be applied only to lift the print.